Rocks That Float (Central Plateau) Te Rangiita, North Island, New Zealand
By funkymunkyzone on 21-Jan-09. Waypoint GC1KZT7

A very fun experiment with flossieteacake - I bought a suitable measuring jug specifically for this cache!Amazed at how much pumice is lying around - wow.A lovely spot. Answers sent to CO.TFT Earthcache, funkymunkyzone ,';*={thanks}-*;', ,;:*(thanks}:*;*:{thanks}*:;, ,;{thanks}:;:*{thanks}:;:{thanks);, `;:{thanks};:{thanks}:;{thanks}:;' `*&;:{thanks}:;:{thanks},:;&*' `-+;:*{thanks}*:;+-` `-\\\||///-' __ \\||// __ / `------' \ | }-(______)-{ | \___/ |||| \___/ /_, |||| ,_\

Found beautiful spot

It was an icy cold one out here today and much nicer to be in a warm kitchen to follow through with the experiment. Thanks for the interesting hands on exercise FMZ.

No problem finding pumics here at gz, plenty of them.Thanks for the cache./herrFamaxe from Sweden

**#17742** This earthcache ** Rocks That Float ( Central Plateau)** had top priority on my bucket list for the visit to New Zealand ! I even prepared myself at home by doing the experiment with the pumice rock , because I feared not to have the correct materials with me on my travelsAs I reached the pumice beach I collected a few samples and I will do the experiment again at homeI sent the answers of my research to the ECCO and I took the mandatory pictures to attach.Thank you funkymunkyzone, for this interesting earthcache at Lake Taupo. TFTEC Greetings from tante resi of Switzerland

After years on our bucket list and three cancellations due to Covid, we are thrilled to finally be here. Following several cruises we flew from Sydney, Australia to Wellington, New Zealand to begin our next adventure. Picked up our rental vehicle and will be driving, exploring, hiking, and caching both islands for 3.5 weeks. What a fantastic earthcache and well-done explanation for the experiment. It was fun. Nukeworker really enjoyed the experiment, being a retired engineer. We loved stopping to pick out the rock we would later experiment with. Our answers have been sent via the message system and we appreciate the CO developing this geological lesson that earns a blue ribbon from us. Thanks for adding to our adventure today, Nukeworker and Racquetball Girl, Arkansas, USA

It's spring time, and that means weekend road trips to go see bands play, which in turn means geocaching.Not the best weather for it today but as its also the start of Earth Science Week 2023 and the 16th annual International EarthCache Day weekend I stopped here to do a quick experiment with the floating rocks. All went well (I think) and the answers have been sent off as requested. ---Thanks to funkymunkyzone for placing and maintaining this cache. I enjoy each and every cache I find, and it is only with Geocachers like this creating them and placing them out in the world that this wonderful game continues.[DGSc-Bulk] tagging to help me generate a list for GC30AD8 - DGSc Challenge.

Passed here so many times before and never had a measuring jug with us. So equipped with one this time round off we set on the way to Ohakune. Light was beautiful here this afternoon. Sent answers to CO.
*don’t do what I did during this experiment and put your car keys down on the shore. Took an hour searching (and panicking)*

On a road trip with buzzybb. Lovely day to be out. She came prepared. Felt like we were back in school science which was never good, funny I decided to take it as a career. Completed with buzzybb. Had a few laughs & scarey moments.

Day 8: We ( TeamARF, Gcoven and myself) have travelled over from Brisbane, Australia to have a visit since we were not able to make it to the Mega. We have spent some considerable time solving puzzles and making plans in preparation. We have a gigantic list of old, interesting, highly favourited, challenges and a few Geo-arts to try and collect over the next 10 days. There is a good chance we got lazy with our logging, or space saving depending on the log size and do some joint variation of our initials - TGJ, GJT or JGT.

Today the plan is to work on collecting things of our list - some of the very old caches in the area as we head back north towards Auckland. We are also picking up a few challenges (will check qualifying once home).

Please excuse the generic log, just have extremely little data to try and survive on it for the 10 days. However, you can be assured that if we have found your cache it was special to us for some reason or in a special location - so thank you for contributing to our holiday.

I will edit logs when back in Brisbane to add more details to those that need more details and of course I will be adding favourite points as I go along.

This stop demonstrates I've become 'Aussie soft' with the weather. When younger I wouldn't worry about low temperatures, a bit of drizzle and the wind. Now when I get out of the car, I do it quickly so not to muck up my curls. And I really wanted to watch some fly fishing from the two spotted. So out I ducked to grab a photo, some pumice for the experiment and a cold air dip.

Answers forwarded to the CO on behalf of Gcoven, JACS and myself.

TeamARF, JACSTeam and I had a fab day collecting oldies and challenges. Thanks to all COs for a fab range of caches and the adventures. This EC was most interesting! Our answers have been submitted by TeamARF.

Sent answers through. TFTEC

#998 answers sent to CO. This contributes towards my daily, and yearly goal of finding my 1000th cache. Lucky my Airbnb that I'm staying at has the perfect measuring jug for the job. Ngā mihi, and happy new year.

Visited here and completed this cool earthcache in the company of the cache owner. It's a great little experiment, especially for children! TFTC!

I’ve always been fascinated with pumice and really enjoyed learning a bit more about it, as well as doing the fun experiment.
Met a fisherman who was doing a small bit of surgery on a resident duck (got a hook in the foot)
Nga mihi, many thanks!

Second photo attached with my materials used

Answers submitted. Nice quiet spot though difficult to turn off heading south. No matter the local Challenge! station is the cheapest diesel around so an opportunity to fill up first. Good Earthcache. Thanks for setting this up.

We were so pleased we visited this site which we probably would not have done were it not for the earthcache. There were great vistas and we enjoyed talking with some of the other visitors. We really enjoyed looking at the rocks, taking photos and selecting some rocks to take with us. Thanks for bringing us here .

Stayed for the weekend near GZ and the girls loved playing along the shore while we collected the experiment subject matter. Thanks for the interesting experiment.

Second photo attached showing experiment equipment.

I’ve noticed this earthcache several times when passing by lake Taupo but never had the time to do it or the equipment with me. Today was a planned excursion down to turangi with friends, so I took the equipment and left time at the end of the day for it. I enjoyed this experiment and have sent the answers to FMZ. Will send the other photo in the next log as for some reason I only seem to be able to send one photo per log when doing this on my phone. TFTC

Here’s the other photo. The tape was put on the jug with true kiwi ingenuity on site as I missed the memo on it being a measuring jug!

What a beautiful location. With soaring temps today we were tempted to have a swim! However on our way back to Palmy after a weekend in Waihi, so we must keep going. Thank you for bringing us here.
Deltatea

finally i have got around to gather all the required information for this cache.
photo to follow
answers sent to CO
great spot at GZ.
lots of people with boats & kayaks today.

A nice quick find thanks. Numbers sent to CO and photos included here. Cheers.

Ms_KR and I are off on a wee tour of the North Island. It was a great weather today, the best so far. Mts Ruapehu and Ngaruhoe looked great from around the lake. We were travelling from Turangi to Rotorua

Thanks to all CO's for publishing and maintaining their caches. Cheers.

Answers with Karma Reprint. Now home in Chch where we did the experiment. There's some splendid vocabulary in the cache notes and I can't wait to get pozzolan on the scrabble board. After reading the notes, I presumed my russet colored rock, from the same area, is scoria but it doesn't sink rapidly so that's something else to learn about. Guess I'll repeat the experiment. Tftc

We made holiday in New Zealand in December 2019/January 2020 and visited this coast at thee lake Taupo on a rainy day. I took a pumice with me at home. The earth-cache-day today I remembered this cache and made the experimence. Ups, my pumice rock is a little bit to big for my measuring jug....

Whilst on hoilday with EyeSpyBen decided to clean up the caches around the shores of Lake Taupo, neat part of the country.

Whilst on hoilday with ABCDF4 decided to clean up the caches around the shores of Lake Taupo, neat part of the country. Lovely grub at The Licorish Cafe.

An unexpected detour home meant we were able to try this earthcache (albeit when we got home). Love science experiments, and pumice is such fun. We found another bay nearby with massive pieces, but ran out of time looking so used quite a small one. TFTC

Extra photo for logging

A nice chance for a leg stretch on the way down to Wellington. Not the most accurate measurement but okay. Thanks for the cache. When I was a kid the only time we saw pumice was when someone was sanding their feet with it. TFTC.

Extra photo for logging requirements.

That was fun. Pengi likes doing these experiments and likes pumice which is like warm ice.

Loved this spot and loved the little experiment. The rain stopped just in time to make this a very pleasant experience. Thanks for bringing us here. A FP.
[#1029]

Like this earthcache! Plenty of specimens of pumice at GZ - the upper part of the lake beach was covered in a thin layer of pumice pebbles so I had no shortage of material for the density experiment. However, a measuring jug is not standard equipment for going on holiday and I had no substitute so there was no possibility of me doing an in situ density calculation - I took a sample and did the experiment at home. I assume that my 1 litre jug is reasonably accurate for normal kitchen applications but is probably of doubtful scientific precision for the task in hand, but even so I generated a density value that feels about right. My answer is on its way my email - and the required photos attached here. Thanks for the earthcache - which I've added to my favourites.

Together with Panne Koppa and Mini_JayJay i visited this funny earthcache with stones that can float. At the end from our vication in self isolstion we had a lot of time for the experiment and we checked our solutions twice... Now we hope that we can get soon a flight home back to Germany. Here i also let a FP back floating on the water!

T4TC
# 19025

Photo of pumice and container at gz

We were on a grand child delivery expedition and this cache provided a welcome stop...they just love throwing rocks into water fill your boots boys ..this was an interesting cache that took me back to my school days and science lessons. I didnt realise how fiddly it was to balance an object under water...we had a few laughs then finally a result..thanks for setting this cache Funkymunkyzone...it was enjoyable and worth a fav I am sure the lake level is now higher with the abundance of pumice the boys managed to throw in

Loved this caching experiment! Things didn't go quite to plan to start with. We had 3 very young boys with us. We delivered one to his mother in Turangi and set off to stay the night in Taupo (brave or silly us) with the other two. On the way we stopped off to do this earth cache experiment. The boys loved throwing pumice into the water so that kept them amused. I made some rough calculations, but being a bit of a stickler for doing things correctly, I decided to collect some water and a piece of pumice and bring it home to conduct the experiment with no distractions. This was a fun exercise. The pumice had a mind of it's own and didn't want the full immersion baptism! With two of us doing the experiment with different samples it was also interesting to hypothesize why the results differed. Thanks for setting up another interesting Earth Cache funkymunkyzone.

Vacations 2019 - Road trip trough New Zealand
With Geoesposa, this was my 50th anniversary. 16 days, 4200Kms and a few hundreds smilles after, i was sure i saw nothing....

I liked everything, the friendly and civilized people, the way the country works, the roads and especially the natural beauty of New Zealand.
I fell in love....
I decided to go back in 5 years, I easily see myself living my last days somewhere lost in any stunning scenery of this wonderful country.

With the itinerary studied at home, the caches were the ones that were in the chosen places, and a few used to stretch the legs. It was decidedly not the most important on this trip. Of all the visited, only half a dozen did not appear, all being in good health except two or three.

I will use this generic log, not for disrespect of the owners, but due to the amount of caches visited. Here the majority of caches serve to show something beautiful (as it should be), not giving importance to the container.

My thanks to all the ownwers who, allied to the natural beauty of the country, have made this vacation unforgettable.

Nuno Salvador
aka ToKayx (Portugal) (translated by Google)

Update to logging requirements: A photo is now required (non-optional) as part of the logging tasks. This is in accordance with the latest update of the Earthcache Guidelines.

Update: After letting the rock dry out as much as possible, I tried conducting the experiment this morning, only to discover that the rock touched the sides of the jug so wasn't exactly 'floating'. When I removed it, I then discovered that in the short time it had been in the water it had managed to re-absorb about 150ml of water!
So I have shaved a very small amount of rock off to ensure the whole experiment will work properly, and am drying it out again before conducting it again with 1 small alteration to ensure more accurate results - Watch this space.

(I apologise for the late log but the date is accurate)
Found today with the help of TwigNZ while we were up in Waitomo for a holiday of sorts. I had a great time doing this earthcache and thanks funkymunkyzone for creating it. TFTC

School holidays, plus the combination of public holidays and 3 days leave means I get to take my lad on a road trip. This time we have chosen Waitomo to be our destination, and today was the first long drive up to Cambridge to visit old friends first.

The wonderful thing about Geocaching is that you are tempted to make an excursion to somewhere you may not have stopped at before, and discover something totally wonderful when you get there. This was definitely the case today, as I have often driven right past this spot but have never stopped before. The lad and I had so much fun exploring all the wonders to be seen, and breaking the journey up, in spite of the inclement weather. Just as well we were wearing clothing we didn't have to worry about lol!

Once we got to GZ, we soon found a piece of Pumice which we thought was perfect for the measuring jug we had brought along, but knew that it was fairly saturated and there would be no way to conduct the experiment accurately today. So we took the appropriate photos of us at GZ and then went on our way north.

Over the next few days we diligently dried our Pumice out, until such time as we though it would be good to go. So having set up the experiment, the first problem we encountered was that when we attempted to float the rock in the jug, it actually touched the sides of the jug due to a slight point at one end of the rock. So I decided to remove the rock to think about the problem, only to discover that in the 30 or so seconds of being in the 500ml of water there was now only 350ml left in the jug as the other 150ml had been absorbed into the Pumice!

Obviously the rock would need drying out a second time. But what to do about the 2 issues encountered? Well the first was easily sorted by using a bit of sandpaper to smooth off the slight point to ensure that the rock would float freely in the jug. I decided that to avoid the problem of water absorption, I would wrap the rock in gladwrap which should allow much more accurate readings without compromising the volume or mass of the Pumice.

So several more days later, after the rock had dried out again, we finally were able to conduct the experiment and submit our answers to the CO. Thanks for setting up this Earthcache, and helping to get our boys roadtrip off to a fun start. Definitely worthy of a FP

Found today with my lad on our way up to Waitomo, but due to the 80-odd mm of rain here in the last 2 days there was no chance of finding a dry stone.
I am posting the photo of said lad holding the measuring jug we brought along with the rock we have chosen to use for our experiment. This will take at least a week to dry out properly so I will do the experiment then and claim the find once the answers have been submitted.

Answers sent to CO. Thanks for a very interesting cache. Pumice was from the secondary location further up the beach (photo below)

This was truly fun. There are too many earth caches where one needs to study for hours and still feel that the aswer is somehow inaccurate. Well, accuracy was far this time as well. Our tools where slightly unorthodox and the result should not be counted as scientifically reliable. Nowadays it’s easy to google about everything and after doing that I feel proud of our answers. Favourite point is a given. TFTC and greetings from Finland!

The Central North Island, Day 4: Taupo - National Park

Today’s weather started of particularly wet but that tapered off a little in the afternoon before a light drizzle returned later on. Oddly enough, I didn’t really need to use a raincoat, just a windbreaker sufficed for most part. Some very unique landscapes along the way, and had a lot of fun exploring the Lake, Desert and Mountains of the region. A surprisingly very productive day for caching, too! A great Christmas Eve all round!

The following are the specific log for each cache:
Very nice place for an EC and a good excuse for me to get a souvenir from Lake Taupo. There were a lot of other people collecting the pumice on site too, I wonder what they are for. Anyway, my photo is attached, but answers will need to wait for a bit. TFTC!

**This was 1 of 20 caches that was found by me on the 15th of 19 days in New Zealand.**
**Which also was the 68th of 75 days that my travels thru southeast Asia and Oceania would last.**

What I remember from this visit was that I arrived here after dusk, that I saw the eyes of an rat shining in the light from my headlamp.

Floating rocks have I encountered before at the volcano Askja on Iceland.

The answers did I send via Message center on July 30th 2019.

*During 19 days I traveled from Christchurch to Auckland in an SUV, that i also slept in during most of the nights. 5.956 km of driving did it take to visit the 351 caches that I have marked as found in c:geo.*

*Earthcaches was my main focus during the stay. And I manage to visit 106 of them. So New Zealand is right now the only country where earthcaches are my most found cache type .*

That earth cache was a lot of fun! We were on our way to Tongariro NP from Taupo and on our way along the great lake Taupo we saw this earthcache on our route. We had no measuring jug in our camping equipment, but we improvised one with the gear we had - I never thought that classic schoolbook tasks like "You have a 5 litres and a 2 litre bucket and want 3 litre" or something like that would be useful in real life. Until now
With our improvised measuring jug we did our experiment with a cooperative test subject. ^^ Picture will follow in B!ber's log. Thank you very much for showing us this place and for this really cool earthcache!
Greetings from Germany, GolmarKlonk

We really had fun with this cache! While a bunch of school kids were building their own rafts we were meassuring the density of pumice. We had to built our own measuring jug first, but in the end we got there. This was a lot of fun, thanks for this interactive way of teaching us physics.

We are travelling along the Lake Taupos lakeside and had to stop off here for my piece of pumice.
Returning home The Seagnoid had the extra tools to get this sorted and Saturday was the day.
Thanks for all the info on the cache page on pumice. Love earth caches. Gets a fav unless rejected. Sorry no photos today.

Day 11 - Monday - Rotorua to Desert Road. The Team is back together and heading south.
The Seagnoid, Zara and I are on another epic caching adventure for the next two weeks, starting with the Wellington Mega, then East Cape, Tauranga, Waihi, Rotorua and back to Wellington. Its been an awesome journey, over 2500 klms later, visiting many amazing places. Thanks to all COs

Heading north on our first grand family road trip. The plan was to head north to Auckland and then tiki tour our way back to Christchurch. Heading to Taupo and stopped by to grab this EC. The cachelets loved the floating rocks and collected a few for the collection. I grabbed a few samples to dry off and wait until I found a suitable jug. We did get a jug a week later in Rotorua and then waited another week before we got home to Chch before I found time to do the experiment. I just have to iterate my piece of pumice was dry as a bone. Great fun and worthy of another favourite.

Thanks for the cache funkymunkyzone.
#5602

I understand why this one has so many fav points (and now one more from me)
A wonderful location, I came early in the morning and it was so calm and lovely.
And also a great task to do!
Answers sent, photo with log, thanks to the owner for this geocache!!

It was time to go to the next shade of green on my GC.COM calender for today so a trip to Turangi was needed to get the numbers.

I have sent my answers off to the CO.

Cheers for the cache.

This was an interesting experiment. Thanks for showing us this place!

TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC! TF TC!

I have stayed a night in Taupo at my usual place Berkenhoff backpackers, cheap place to stay, no frills, but warm and cosy and central. Today I carry on my mission of looking for caches that fulfill the ‘400 Challenge’ and the ‘Jasmer challenge’ as well.

This EC also happens to help me along with the 400 challenge, but I DO love EC's and this one was brilliant fun FMZ! You're gonna get a FP for this. But I did have a small problem.... I didn't read the cache page properly and seemed to neglect reading about bringing along a measuring jug. Bugger. But I did have a kettle I use for making my coffee, so improvised with that, I used that to gain initial info. Found myself a nice sized and dry as pumice stone. Took fotos of moi at GZ then initiated the experiment. But another bugger... marker pen wouldn't write on the kettle so as to give me accurate measurements. So what to do? Nothing for it but to take the pumice stone home and recreate the experiment there.

I did that and have sent the appropriate info to FMZ. Here are a few fotos I took along the way and through the experiment!

Cheers Chris, fabulous EC mate.

Log later

TFTC
Amazing place!

Gevonden!

Back on the road again for another international trip. This time to Australia, New Zealand, Taiwan and South Korea.
Like our previous trips we focussed on old caches, high favorites, rare cache types and pretty locations.
Most of the trip was together with Plaguerider, Zanna and FLtravelers, but some of it I did solo.
Logs were signed as DATT (Do All The Things) and if there were answers, we typically sent them as a group.

Thanks for maintaining the caches for us.

Waterfan5,
Kennesaw, GA

**Trip log:**
Found during Team DATT's (Do All The Things) annual international caching trip consisting of FLtravelers, PlagueRider, waterfan5 and myself. Africa kicked it all off back in 2016, with a follow up European tour last year. I tried to pitch Asia but the pull of the Great Ocean Road and completing our 6th continent was too strong, and we landed on week long road trips through both Australia and New Zealand. Before meeting the team in Sydney though, I was able to schedule some layovers in Asia (Beijing, Bangkok and Singapore), so in the end I got a bit of everything. =)

**New Zealand Day 11 - Taupo -> Tongariro National Park -> Wellington:**
Today was pretty long as we covered a large portion of the north island on our way to Wellington and our ferry ride tomorrow. We detoured west around Tongariro National Park to enjoy the views, which were unfortunately obscured by clouds a majority of the time. It was overcast all day but luckily we never got rain. We were able to get into Wellington early enough to walk around and enjoy a Cinco de Mayo dinner at a restaurant called "Mexico," which I thought was just too funny.

**Cache Log:**
Great place for an earthcache, and very interesting. Answers for the group have been or will be sent soon.

TFTC [zanna - Atlanta, Georgia USA]

We’re on our annual international geocaching trip as Team DATT (Do All The Things) comprised of FLtravelers, PlagueRider, waterfan5, and zanna. This year we chose to explore Australia and New Zealand. Zanna and I decided to do a two-day stopover in Beijing, a three-day stopover in Bangkok, and a 12-hour layover in Singapore on our way to meet up with the rest of the team in Sydney.

Once we got the Team back together, we made a “bee-line” to Lane Cove and various caches around Sydney. Then we headed down the coast on A1. After visiting Wasp Head, we headed up through Canberra and down M31 to Melbourne, after a webcam stop on Mount Buller.

We had a great time in Melbourne, which is my favorite city in Australia so far, then onto the Great Ocean Road, the highlight of Australia for this trip. After a couple days (not nearly enough) we left the ocean road and headed up A6 towards Victor Harbor (webcam) and Adelaide (webcams) for our flight to Auckland. Seems we found every webcam in Australia.

After a short week in Australia, we flew into Auckland and continued with our explorations in New Zealand. We drove over to Tauranga, and then down to Rotorua and Taupo, enjoying the thermal features. We headed down 5 to Napier, with stops at a couple of waterfalls, and then down to Wellington to catch the ferry to the South Island.

We spent the night in Picton, and then over to the awesome west coast, before crossing over Arthur’s Pass on our way to Christchurch for flights home.

We targeted old caches, highly favorited caches, earthcaches, virtuals, and of course webcam caches, and anything else that got our interest along the way. Logs were signed DATT. Answers, where required, were sent by one of the team members. Thanks for adding to the enjoyment of our trip with this cache. Great spot. TFTEC!

Beautiful location! Fun doing the experiment. Loved the peacefulness. We are here visiting family from the home of the original stash. Driving from AKL to PMR with kiwisteve2 and gymratnz and taking in the sights and finding high favorite caches and earthcaches along the way. Tftc

Mum, 13YO, 10YO and 6YO went hunting for this cache. 13YO grabbed the pumice to measure later, and took the photo of 6YO at GZ (camera and GPS are one and the same, so could not take a pic of GPS!)
13YO had learnt about measuring density recently at school, so took charge of that part of the earth cache too.

Tranquil waters while some fly fishermen were active. Got the pumice and took home to do the experiment.

Will send pics with experiment finds once we get a measuring jug!

Our youngest cacher and I had a great time doing this one. We left Taupo equipped with the measuring jug and headed for spot x. Once there the youngest eagerly sought the right sized pumice and took the initiative to fill the jug half full. Together we did the experiments and learnt a thing or two on the way. TFTC!!

Adding second photo required - Thanks!

MattyH from Tassie

MattyH from Tassie

Visited cache on the way from Tongariro to Taupo. Weather was very wet all day so attached image of Geoson with GPS, on spit at month of river entering Lake Taupo is very poor. Measurements were done back in hostel room with improvised equipment as shown in other image. Thanks for the chance to excercise my brain. MattyH from Tassie

Visited cache on the way from Tongariro to Taupo. Weather was very wet all day so attached image of Geoson with GPS, on spit at month of river entering Lake Taupo is very poor. Measurements were done back in hostel room with improvised equipment as shown in other image. Thanks for the chance to excercise my brain. MattyH from Tassie

Thank you for setting this earthcache. After 3 nights camping with family in Turangi it was time to hit the road again and we had wanted to do this earthcache since spotting it when planning our NZ holiday from the UK. We had even bought a measuring jug in preparation when we found our hired campervan didn’t have one, so just had to stop off and complete the challenge today. We chose two pumice rocks and carried out the experiment on them. We have sent the results for the larger one as it fitted in the jug. It was a beautiful view over the lake from here and a bright day to enjoy those views. We will try and upload our photos as soon as possible. A decent wi-fi connection for photo uploads is proving to be a hard thing to find on the campsites we’ve stayed on so far. TFTC.

We collected some of the rocks and will do the experiment most definitely back at home. We look foreward to it.

Our time in this beautiful country is coming to an end. It's getting close to the end of a three month adventure, mostly away from home. micaparamedic arrived at my place in Washington State toward the end of July and we immediately headed down to Oregon to find some old caches for his Jasmer challenge. From there we headed up north to The Yukon and Northwest Territories in Canada for a few weeks.

We attended the mega APE event in Washington, and the same day headed down to camp on a farm in Oregon where we were directly in the path of a total solar eclipse. Back at my place, we took a few day trips before heading to Australia where we spend almost a month doing many things on my bucket list including walking around Uluru and seeing the Sydney Harbour. Now we're spending a few weeks in New Zealand (which was also on my bucket list) before once again going our separate ways. What a trip!

I wish I could stay longer to explore the many, many wonderful things to see and places to go in this country. One of the mountains today reminded me of Mount Rainier which is near my home. The colour of the lakes is incredible - something we don't see close to where I live.

This was a fun experiment to conduct. Mine was done first in ounces and then converted to metric. I then did a tiny, broken piece in a very small graduated cylinder (metric) and the results were almost identical.

Thanks for letting me float my rock.

Out with Red Roaming as we tour NZ, having a wonderful time on these Islands. another lovely sunny afternoon after a morning of heavy rain. apologies for my lateness in logging of this cache.
RR did the necessary experimenting of the pumice stone at home, having visited this amazing place and she has sent the answers of our behalf. Many thanks for bringing us here, what a wonderful different earthcache. MTFTC

Logging as found having visited this earth cache, carried out the experiment of my rather small piece of pumice stone as requested, and emailed my answers to the CO which I hope are acceptable. Visited on a breezy and sunny afternoon on 30th April 2017 after heavy rain in the morning, and a beautiful place it is too! The hostel we were staying in didn't or at least we couldn't find a suitable measuring jug and then the pumice stone just travelled along with us until we reached home in England just over a month later, when I finally managed to carry out the experiment!
I have uploaded the required 2 photos but as DD didn't have her GPS with her and I don't use one [use an iPad] there is no GPS in our photos at GZ

Favourite point - an interesting and very different earth cache, an interesting type of volcanic rock and a beautiful place to visit! Many thanks,

Travelling around the world with Dartmoor Deliverer to help her celebrate taking early retirement, although she will be going back and doing reduced hours for a little while longer!

NB Have a look at GC6JZNY Devon UK Mega 2017 from 31st July 2017 - our UK Megas are a full week of geocaching and activities showcasing our beautiful county in the south-west of England - go on, treat yourself to our summer!

On an Easter break with the family - decided to take them down to Turangi and re-live the 2016 Mega fun On the way home I swung past here in an effort to clear up some other caches I didn't get a chance to before. Cheers FMZ TFTEC.

Cache # 3,728 - a brilliant earthcache, and worth a favourite point. Did the whole experiment with Astro Hunter and Violet Butterfly (with the ex-Mrs. Wandering Dragons along to take pictures). Answers sent to CO, and pictures uploaded - multiple rocks tested and a couple of different angles on the spit! Thank you very much.

Consecutive caching day # 1,434

Did this with The Wandering Dragons and Violet Butterfly. An awesome cache. I learned a lot. Thank you!

Cache # 735

Did this with Astro Hunter and The Wandering Dragons. Tried a couple of different rocks, came up with similar results. Very useful knowledge to have. Thanks!

Cache # 1,273

We stopped by for this one, on our journey back to Tauranga from Wellington. We had the area to ourselves, and it was rather rainy today. Great little experiment, and we sure have learned a lot more about **'pumice'** as a result. Many thanks for the time and effort in setting this up, much appreciated. See photos.

#131 Found with my mum Gr33nslime and perhaps my dad JimmyNZ. Trying the mass logging thing with GSAK hence the really general log entry!

# 908 JimmyNZ had some time off work, and DangerSAM and myself were keen to get out of the house, so we went on a holiday to the shores of Lake Taupo from Palmerston North, and caching was to be big on the agenda!

For some reason we had a thing about earth caches on this trip, and this one wasnt too far away from where we were staying so we had to go check it out! It was a part of the lake shore i hadnt been to before and it sure wasnt short of pumice! The hard thing was which one to choose? I inadvertently went too big and outsized the measuring jug at the bach (at least there was one - although i like some other cachers use of water bottles etc for measuring volume). Luckily JimmyNZ was a little more conservative so we did the experiment on his smaller sized pumice. It would be very interesting to see a graph of all the results that have been submitted! Thanks for the cool earth cache funkymonkeyzone!

Gr33nslime, DangerSAM and I decided to have a belated break from work and came up this way for a get away from our usual haunts down in the Manawatu. Luckily we have some friends with a bach around in Omori so we were able to stay there and enjoy some great weather. Almost every day we were able to get out and cache around the local area. Some locals have placed some interesting caches in places that we have not been before. We’ve been amazed by how many caches have taken us a few more steps off a well worn track to see some great little gems of New Zealand. We’ve been coming here for many years and these caches have been a cool way to explore the local area in a lot finer detail. With DangerSAM now playing the game with us it’s been good to take him along to these new places, many are kid friendly. Our muggle friends even enjoyed the distractions when every so often we’d veer them off the path to get a cache on out on our many outings. My thanks to the caches in this area, they have put some great little finds together and are very much worth a visit.

Came to do science and stuff, who'd have thought.. Enjoyed the experiment and I learnt something about pumice mass, even better.

On our way home from taupo we visited this site today, we sourced a piece of material to gather the required info to complete this challenge.
We took some photo"s of this area for the first part.
Today at home we did the required experiment and have emailed the answers on .
Thanks for setting up another earthcache and another smiley.
I think one of us now has a better understanding of this new material we have discovered.
[FTF] for 2017

When read about thks cacne, it knew that it will be on my way despite the rain k stopped neaf the shore, took a stroll to fetch some water and some pumice to do tne experiment. Thanks a heap for this lovely outdoor fun part !

**taybee** is caching again with **taybee nz** As we are at the Mega we had this one on the list to do
Pick up same pumice rock , and had to wait for it to dry out be fore doig test on it , Pics taked at the Mega
All in good order, sign log book as **taybee** or **tb ** TFTC Log by Gsak
Cache was find at **2016-12-04 16:35:00**

TFTC
See Taybee logs
[?] Found with ***taybee*** [?] Sign log book

After picking some pumice a few months ago, Ninalila and I finally made the experiment in order to find the density of the choosen rock. It was also a good place to come and walk along the lake and even swim. The view from GZ is really beautiful.

The experiment is also an interesting and funny thing that you will do only for geocaching

Thank you for the discovery, one fav point.

Fefe.adrien and I started this earthcache few months ago but we never took the time for the experience with the pumice and the water. However, we kept some pieces of pumice in the car for a while just in case...
When we came back to Turangi for the MEGA we fibally got all the gear for this lesson of geophysics.

First time I see a rock which can float !

+ one favorite point

Visited GZ during the Mega event long weekend on a mission to find 9 different types of cache in one day but turned out we didn't have suitable measuring equipment with us to complete the requirements for logging this Earthcache and ended up doing another. Grabbed a suitable piece of pumice and one of the required photos so that we might complete things when we got home.

Finally got a chance to do the measurements this evening and send the answers to the CO. Thanks for the Earthcache funkymunkyzone.

On our way to Taupo after the completion of the MEGA, picking up a few caches along the way past. We stopped in at GZ and collected up a few samples for this experiment and also a few to take home with us. We didn't arrive prepared so took our sample with us to complete at home which has now been done and answers emailed to CO for verification. An interesting experiment and a great place to visit, TFTEC!

Day 8 of our Mega Roadtrip and our last day in Turangi so we did this earthcache on the way out of town. It looked like a misery day but it was hot and muggy and the pictures dont do the weather much justice. A fun experiment. Thanks for the earthcache and Thanks for the smilie

Out with Etherlord getting him 8 types in a day, on the day of the Turangi Mega. Etherlord had already done this earth cache, and I had my eyes on it for a while - I love earth caches! So we stopped off here to get a piece of pumice and a one of the requisite photos. Alas, it was at night and even with the car lights on it's not too obvious.
So that was the easy part. I have kept that piece of pumice precious for sooo long now... No decent measuring jug. And then I realised - I don't need a decent measuring jug - What I need is decent kitchen scales! Probably more accurate than your average kitchen measuring jug anyway. I have a decent set of scales, alas in storage in Palmerston North. I'm in Blenheim. Not the same place. But a bit of asking around at work got me what I needed and then a bit of measuring over my lunch break and and a bit of work with a teaspoon to get the water levels accurate and I had some answers. Slightly amazed when I found that the volume of my pumice measured exactly 100mL!
+ favourite!

#2981. Well the Mega event is almost over and just time to pick up a few more local caches before heading south today. Its been a fun few days but all good things must come to an end. I stopped at the sand spit and had a read through the earthcache requirements. I didn't have a 1 litre jug in my geocaching toolkit (the list of things I need to carry is growing by the day) so found a few suitable size pumice rocks on the spit and packed them in the geomobile. Then took some photos on site. Back home I found a measuring jug in the kitchen and poured in some water. Found a piece of pumice that was small enough to be submerged but not too small to make it hard to get useful measurements. Carried out the exercises as requested and sent the info to the CO. I grew up in Rotorua so was pretty used to seeing pumice in gardens or around the various Rotorua lake shorelines. A nice bit of physical science to study density of rocks. Thanks for the earthcache.

As part of our time at the NZ Mega at Turangi we ventured to this Earthcache and conducted our experiment. We sometime find these floating rocks on the north coast of NSW after volcanic activity to the NE of Australia. Thanks funkymunkyzone for this very interesting Earthcache.

Out with Vamber on a road trip to Taupo from the Turangi Mega. We didn't have a measuring jug so got the required pumice and did the experiment home. Nice place to visit, thanks for the earth cache