Mimbi Caves

Mimbi Caves form a network of passages adorned with stalactites, stalagmites, flowstones, and calcite crystals created through limestone erosion over millions of years. The system extends through the Mueller Ranges with multiple chambers and passages available for exploration.

The cave structure originated from the Devonian Great Barrier Reef, creating limestone formations and fossil deposits approximately 350 million years ago. The system expanded over geological time through water erosion and mineral deposition.

Gooniyandi guides share traditional stories and knowledge about this sacred site, revealing its deep significance to the area's Indigenous community.

Guided tours are available during the dry season and require advance booking through Girloorloo Tours, which offers varying durations. Accessibility depends on seasonal conditions and water levels inside the caves.

The network features cold freshwater pools and large-scale fossilized reef structures that draw geologists worldwide for research. These fossils provide rare glimpses into ancient marine ecosystems from the Devonian period.

Location: Mueller Ranges

GPS coordinates: -18.74676,126.05997

Latest update: December 6, 2025 19:08