Their returning Olympic athletes have to quarantine for 14 days in Sydney, then another 14 days if they go home to another state. That's 28 days of quarantine.

https://www.reuters.com/lifestyle/sports/olympic-body-lambasts-cruel-28-day-quarantine-athletes-returning-south-australia-2021-08-11/

I am planning a big trip with my wife and before Rona we were really wanting to visit Australia. No longer.