Well, sparsely inhabited except for the coastal cities.
In terms of international travel. Apparently in 2024 Australians took over 11 million overseas trips. For a country with a population of 25 million, that's quite a lot.
I suspect it might be a wealthy subset.
https://www.abc.net.au/news/2024-09-16/travel-tourism-australia-holiday-cost-of-living/104337072