Start your Windjana Gorge and Tunnel Creek 4WD tour with early morning pickup from your hotel. Departing Broome for the Kimberley, hear informative commentary from your guide on the geography of the region.
You'll stop at the Willare Roadhouse for morning tea beside the Fitzroy River, then continue on to the Boab Prison Tree, rumored to have been used in the 1890s to imprison indigenous Australians en route to nearby Derby for sentencing.
After a look, continue along the Gibb River Road, a former cattle route accessible by 4WD vehicles. You'll arrive at Windjana Gorge, an ancient reef oasis of the Napier Range, made of soaring limestone walls rising more than 300 feet (90 meters). Search for fossils of shells and tiny marine creatures as your guide points out any wildlife, including birds and freshwater crocodiles that stealthily inhabit the Lennard River.
After a picnic lunch, depart Windjana Gorge for Tunnel Creek in the afternoon. Disembark your vehicle for a guided walking tour of subterranean tunnels that form an underground labyrinth beneath the Napier Range. Your guide reveals the history of white settlement in the Kimberley region and shares the legendary tale of Jandamarra, an Aboriginal tracker who led an insurrection against colonizing pastoralists and hid out in the gorge in the late 19th century.
Reward your walk with a refreshing dip in a swimming hole before a last stop at the ruins of Lillimooloora Station to view the sunset. Your 15-hour day trip includes afternoon tea and an optional dinner (own expense), before arriving back in Broome at night.