The tip on Andrew is correct AFAIK - maybe dig him up, or Kevin Westren ? I think there are only 3 or 4 attempted routes in the valley (just think about that !). Something tells me they were behind Glen Davis, but I may have pulled that from my bum.
AFA the PoM for GoS NP - well, whatever. I was at the Capertee meeting. IIRC no proposal was mooted that the only climbing sans permission would be Carne Creek. But hell it was ages ago and they are only at Draft stage.
I would argue that adventure climbing is a legitimate wilderness activity and you should be able to have an adventure without asking permission. Otherwise you may as well go live with yer ma and da agin and be 12. Sensible use should be encouraged, or at least ignored by authorities. Maybe just leave the power tools at home for some self-enforced wildplaces effics. I don't think a rash of routes would get more than 3 or 4 visitors a year if you put bloomin billboards on the M4 for a summer. Hell, hardly anyone climbs in the Wolgan other than the classics. It sure aint rooned, considering it was a razed wasteland around 100 years ago.
But legally kuu is correct. I think the NPWS reg controlling adventure activities (ie them being illegal withut consent) had only recently, or not at all, come into being at the time of the Capertee meeting.