Re: Caches in National Parks
Geocaching has actually been banned in NSW National Parks since around 2002, though nobody knew about it. They eventually contacted GC who stopped listing any new ones. If you head over to the NSW section of the forum there is more detail there, however following negotiations between Geocaching NSW and Parks caching is once again permitted. There is a process to follow and the cache location requires approval by the local Parks representative.
There is also more information at http://www.geocachingnsw.asn.au
with links to the form to be completed and contact details for the various parks, as well as the restrictions that are in place.