I lived in Brisbane for a few years, I remember that there were a couple of MeetUps with big crowds happening at the time.

Also, it was a company (I don't remember the name) that help you to exchange part of your salary for BTC. And in Fourtitude Valley there were many bar/restaurants crypto friendly.

The first BTC ATM that I used was located in Nimbin, if you don't know about this village let me tell you that is a one of the kind...It started as a Hippie Community and many of the local business sells weed, the police knows but but they don't intervene much....That's why the very first Australian ATM was located there I guess....