Be sure to stock up on fuel, food and water supplies before leaving Derby. The first 70 kilometres of the Gibb are sealed, then it’s 4WD all the way until you hit bitumen 30 kilometres from Kununurra. Your first stop is Windjana Gorge National Park, situated within the Napier Ranges – part of an ancient reef system formed around 350 million years ago. Explore the 3.5 kilometre walk trail to view its sheer 100 metre walls revealing fossils of primeval lifeforms and its cool pools that support an abundance of wildlife. Follow the road south to nearby Tunnel Creek National Park, WA’s oldest cave system. Allow at least an hour and a half to take a torch-lit walk through the 750-metre tunnel and its subterranean world of bats and fresh water crocodiles. Wear sneakers and prepare to get wet. You’ll need to return to Windjana Gorge National Park to camp, where facilities include toilets, showers and firewood.