>>1608050>what's the deal with wildlife out there?Honestly not a problem as long as you're careful - heat and dehydration are the real killers. Venomous snakes are a pretty common sight in the warmer months, but will usually avoid you if you make a lot of noise. (wearing heavy footwear helps). Lots of spiders too, but they aren't an issue as long as you don't fuck with them. I don't believe anyone has died from a bite since the 70s.
Introduced animals are also an issue in more remote areas where culling is not feasible - heaps of feral dogs and pigs in wilderness areas. To be honest, I'd be more scared of the wildlife over in America.
If you ever get a chance to visit, make sure you get to Tasmania - the /out/ is honestly incredible there, pic related.
>>1608043>How do I avoid the 40° temps?Pretty obvious answer, but walking during winter and the shoulder seasons is best - also helps with water avaliability.
>Where should I move to have a comfy solo bushwhack experience without seeing a single soul, all year round?Pretty much anywhere outside the major cities to be honest. You've got to be willing to go off track though. The aussie alps or western tassie would be my pick. If you're living in Sydney, there's even some great stuff accessible by train.
>What about mountains - is all of this flat?Not many proper mountains by US/Euro standards, but some routes have pretty serious elevation changes and the landscape can be challenging nevertheless. The snowies are great if you're looking for alpine scenery. Jagungal wilderness is my recommendation - great cross country walking and some remote grazing/ski huts with pretty much nobody up there in summer.