There are several options to get to this cache, the closest from the Tall Trees car park, which makes it about 500 metres of walking one way to get there. You can continue along the track to Lady Barron Falls and either return the same way or make it into a circuit walk taking in Russell and Horseshoe Falls. There are places to stop along the way.
The walk takes you through tall forests of swamp gum (Eucalyptus regnans) and stringy bark (Eucalyptus obliqua) and are good quality all weather tracks.
Look for a Eucalypt at track edge on on bottom side, but due to the tree cover the GPS reading may not be as accurate as desired, however the hint, if you want to use it, should be a big help as will the photos on the gallery.