Semolon Waterfall

Semolon Waterfall (Air Terjun Semolon) is a natural waterfall located in Mentarang Sub-district, Malinau Regency, North Kalimantan, Indonesia. Situated within the forested interior of Borneo near the Mentarang River, it is known for its wide, tiered cascade flowing over rocky formations into natural pools. Surrounded by dense tropical rainforest, the waterfall is a local nature attraction offering scenic views and a tranquil environment for visitors exploring the Malinau region.

Visitors can expect a forest waterfall set in dense Borneo rainforest with a broad cascade flowing over rock terraces into shallow natural pools. Access is via a road journey from Malinau town to the Mentarang area followed by a short walk on a natural forest trail. The surroundings remain largely natural with minimal development, offering open views of the cascade, forested banks, and clear water pools suitable for sightseeing, photography and wading where conditions permit.