There are several options to get to this cache, the closest from the Visitor Centre., which makes it about 750 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.
The walk takes you through tall forests of swamp gum (Eucalyptus regnans) and stringy bark (Eucalyptus obliqua) and are good quality all weather tracks.
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.
The cache is just a few metres off the track on hard ground. The track gets a reasonable amount of use so be aware that people could suddenly appear.