I bet something like going through a rainforest really gets your adrenaline pumping.
I've never really thought about going into a rainforest but this seems genuinely exciting.
It was exciting. As well as humid, steep, and wet. It was beautiful though, waterfalls all over. Look at the national parks in Queensland. The area is seriously uninhabited though and enormous. Have a clue and don't just wade in, you need maps, a compass and a pack with a few necessities. It is the no-crap kind of wilderness that people get lost and die in. We weren't pros and stuck to reasonably marked trails, even then we had a few moments "WTF are we!" panic and backtracking. I have great pics and would do it all again in a heartbeat.
Travel with a camper/camper van/mini motorhome is great. Most are equipped with the basic supplies like folding beach chairs, pots, plates, glasses and are much cheaper than you would think. Then you have your lodging, transport, and beer fridge all in one place. Nothing like pulling up someplace lovely, whiping out your beach chair and cracking a beer.