There is a group called 'Sydney Bushcrafters' on Facebook, as well as 'The Australian Bushcraft Magazine Facebook Group'. Both organise Sydney meets. Can't say I've been to either, but they do seem to be pretty good groups of people. The forum also has meet ups on occasion, not that I have been to any of them either.
I've got to start turning up to some myself, the videos seem to show a lot of fun being had.