This is a nice and easy find. At the end of Wollombi Road there is a driveway to the tanks and the entrance to a nature walk. Of course being Sydney Water there are all sorts of "None Shall Pass!" types signs which you can safely ignore. They mean jumping the fence at the bottom as the track goes around the outside. Anyone looking for GC cache 'Tanks' can log this. A nice red trig on top of a water tank. We could see it from 'Bushranger' trig.
Good spot.

Rated: for Overall Experience.