Sorry for the slow reply - I've been off with shoulder problems.
The only group of fire spinners I know of that are active atm in Newie meet at Speer's Point in the park at dusk on Sunday evenings (currently at 7.30 pm), they co-ordinate things via their facebook page;
Newcastle Combustion Appeciation Society
https://www.facebook.com/groups/139945002765801/Circus Avalon was having a regular fire spin on Sunday evenings on the foreshore, peeps got busy with other stuff and they haven't met for months but Circus Avalon still have their practice meets (all circus arts) - I think they're at Broadmeadow , I've never been but they probably have a web page.
The group that used to spin behind the Lass O'Gowrie broke up a couple of years back, I've not been there to check if someone started up again.