Labuan Cermin Lake

Labuan Cermin Lake is a natural two-layer lake located in Labuan Cermin Village, Biduk-Biduk District, Berau Regency, East Kalimantan. It is notable for its exceptionally clear, mirror-like water where freshwater sits atop denser saltwater. Surrounded by dense tropical forest and accessible only by boat through a narrow channel, the lake is a popular natural attraction for swimming, boating and photography.

Visitors can expect a small, forest-enclosed lake with extremely clear water that reflects the surrounding trees like a mirror. Access is via a short boat ride through a narrow, mangrove-lined channel from Labuan Cermin Village, followed by a wooden walkway and jetty at the lake. The setting is tranquil and natural with a swimming area, small boats for rent, and forested banks. Visitors can swim, snorkel, ride a boat, and photograph the transparent water and layered water phenomenon.