Re: Australia.
#1; Apparently, filming takes place in Australia's Springbrook National Park in the Gold Coast region of Queensland.
The real-life jungle is part of the Gondwana Rainforests of Australia, a UNESCO World Heritage Site.
The camp itself is located in Dungay Creek in the southern part of Springbrook, closer to New South Wales. The nearby town of Murwillumbah has previously been used for filming too.
Keith.
"Our veterans did not forget about us .... Let's not forget about them." From Michael Levesque