I swear, Australia MUST be the real world inspiration for Harry Harrison’s “Deathworld” series of novels! Just about everything there will kill you...
If you can avoid the poisonous snakes, you’ve got the Sydney Funnelweb Spider, then all sorts of seriously poisonous jellyfish, and the blue ringed octopus, and if you can avoid all those, you get to play with a great white shark!
Mark