About Batu Cermin Cave
Batu Cermin Cave, also known as Mirror Stone Cave, is a natural limestone cave located in Batu Cermin Village, about 4 km north of Labuan Bajo in West Manggarai, East Nusa Tenggara. Notable for its sunlight-reflecting walls, stalactites, stalagmites, and marine fossils on the walls, the cave was discovered in 1951. It is a popular half-day nature attraction near Komodo National Park.
Visitors guide
Visitors can expect a guided walk through a limestone cave system accessed via a short forest trail and concrete steps. Inside, narrow passages open into chambers with stalactites, stalagmites, and fossilized corals and turtle shells embedded in the walls. Sunlight entering through a hole in the cave creates a mirror-like reflection on the walls between 9 AM and 11 AM. Bats inhabit the darker sections and a flashlight is needed. The surrounding area is dry forest with karst hills.
Key highlights
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Mirror-like light reflection on cave walls when sunlight enters through the cave opening
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Stalactites and stalagmites formations inside limestone chambers
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Fossilized marine corals and sea turtle fossils embedded in cave walls
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Short trek through forest and karst landscape to reach the cave entrance
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Bat colony habitat in the inner dark chambers