Tunnel Creek

Tunnel Creek is a 750-metre natural limestone cave in Tunnel Creek National Park in the West Kimberley region of Western Australia, about 184 kilometres southeast of Derby. Formed within a 350-million-year-old Devonian reef system, it is Western Australia's oldest cave system and the only cave in the state where a creek flows through its entire length. The cave is known for its Aboriginal heritage, colonial history, and walk-through caving experience.

Visitors can walk through a 750-metre limestone cave where Tunnel Creek flows through the entire passage. The cave is dark, with uneven rocky floors, permanent pools requiring wading up to knee-deep, stalactites, and colonies of bats and freshwater crocodiles. Natural daylight enters at both ends and through a collapsed roof section in the middle. The surrounding national park is arid savannah with Devonian reef limestone outcrops, car park, picnic area and interpretive signage. A torch and water shoes are essential.