An undiscovered attraction in the Mount Napier State Park, the Byaduk Caves are the most extensive set of lava caves in Australia. The caves form an intricate connection of underground tubes, created when the lava from nearby volcano Mt Napier solidified on the surface and molten lava continued to flow underneath.  

Found in Australia’s youngest volcanic province at only around 30,000 years old, the caves are largely unweathered and still maintain in their natural state. The largest of the caves measures 18 metres wide, 10 metres high and extends 20 metres below the surface.  

The caves are easily accessible by 2WD vehicles and there is ample parking.  

A short walk from the carpark will take you along various walking trails interconnecting with the caves, with viewing areas from the surface.   


phone. 1800 807 056
Byaduk Caves Road, Byaduk North