Dimalurru (Tunnel Creek) National Park » Australia's Boab Country
Step into an underground adventure at Dimalurru Tunnel Creek National Park, home to Western Australia’s oldest cave system.
Part of the ancient Devonian reef system—alongside Windjana Gorge and Danggu Geikie Gorge—this remarkable cave has been carved over millions of years by the flowing waters of Tunnel Creek beneath the striking Napier Range.
For those keen to explore, a 750-metre walk leads you through the tunnel itself, where you’ll wade through cool freshwater pools beneath towering rock formations. Inside, you’ll discover stunning natural features like stalactites and stalagmites, along with unique wildlife including bats, olive pythons, and freshwater crocodiles.
To make the most of your visit, bring a reliable torch, wear sturdy old shoes, and be prepared to get wet—the water is usually just over knee height but can be deeper depending on conditions.
Read about the history in the novel Jandamarra and the Bunuba Resistance
