The fossilised Gogo fish (Gogonasus) was discovered in the 350 million year old Devonian Reef in WA’s Kimberley region. It is considered to be the evolutionary ancestor of the modern land animal (tetrapod).

The Karst cliffs

Mimbi Caves
Amazing cultural history and spectacular geology.


Imagine a tropical reef full of colour and life.
That was the central Kimberley 350 million years ago. This ancient reef has been beautifully preserved with an incredible range of stunning rock formations and priceless fossils.

caves-pic.jpgThe spectacular and delicate limestone formations, brilliantly vivid colours and icy cold, crystal clear freshwater pools are all that remain of the Devonian Great Barrier Reef that was formed over 350 million years ago.

Mimbi cave system reveals ancient large scale fossilised reefs that are amongst the best preserved in the world. This extraordinary location attracts geologists from all over the world.

Your guides will share a wealth of information on how the cave systems were formed, pointing out various rock formations including speleothems, tall slender stalagmites, shawls, flowstones and sparkling calcite crystals formed over millennia.