Where in Australia have you visited? ^^
Some places here are really nice - a few I can list are in the Gold Coast in QLD, Byron Bay in NSW, and Kangaroo Island in SA.
I know Melbourne (in VIC) like the back of my hand since I live near it, but it's not much compared to cities like Tokyo or New York tbh (in my opinion) :'D
Japan is really unfortunately heavily radiated...I've heard people are actually collapsing on the streets, it's that bad ;; I really wanted to go back and live there, but I'm afraid that's out of the question now...unless I want to risk illness/death TT___TT