Not sure what year it was, but I can recommend the Willow Tree (I think they called it "Freedom Camping Ground") or words to that effect

I had left Tamworth, on the way to Richmond, north of Sydney, and was looking for a place to park up, for a few hours rest

Wife spotted the sign so I drove in (it a a big area), parked under a tree, had a snooze, and woke up close to the evening, so I stayed where I was

Next morning I spotted RV's near the ablution block, and went to say hello

Found out that it was a paid camp of (forgot how much), to be paid at the tourist info place to obtain key (or key code)

Waited for the info place to open, and gave a donation, as I for one appreciate when a free/donation/low cost camp opens

In my opinion, the best way to use this camp in the summertime, is to pay the $15 to use the electricity

This is only my personal opinion, but until Covid-19 goes away, I will only use my own toilet and shower, just to be careful