Good on you Alex for bumping this thread.
Although we on the Central Coast like Mangrove Mountain (aka The Pony Club) as it is good and dark and half way between Sydney and the Central Coast...
there was a question about camping earlier in the thread.
At this point, we on the Central Coast (and some Sydney-siders too) like to go freedom camping at Bretti Reserve, 32km north of Gloucester.
Large flat areas, great horizons, few trees, two fresh water streams and free camping permitted up to 30 days by council law.
As you mentioned, when we head off for a few days there, we normally start a thread about it in the Star Parties forum.
Hope to see you there one day too.