Jempang Lake

Jempang Lake (Danau Jempang) is a large shallow freshwater lake in Jempang District, Kutai Barat Regency, East Kalimantan, Indonesia, part of the Mahakam River lake system alongside Lakes Semayang and Melintang. Covering about 15,000 hectares in the wet season, it is notable for its seasonal water fluctuations, peat swamp surroundings, floating fishing villages, and rich biodiversity including freshwater fish and waterbirds, serving as a livelihood and cultural center for local Dayak communities.

Visitors can expect a vast, shallow freshwater lake surrounded by peat swamp forest and wetlands, with water levels that expand and shrink seasonally. The lake features floating fishing settlements, wooden jetties and traditional boats. Exploration is mainly by rented motorized canoe or boat from villages such as Tanjung Isuy, offering views of open water, aquatic vegetation, waterbirds, and daily fishing activities. There are no developed beaches or large structures, the setting is natural and rural.

Jempang Lake is part of the historic Mahakam River basin that has long supported Dayak settlements and river-based livelihoods. The lake system has traditionally served as a fishery, transportation route and settlement area for communities in Kutai Barat, with villages such as Tanjung Isuy maintaining long-standing fishing and cultural practices linked to the lake.

The lake is central to the culture and livelihood of local Dayak Benuaq and Kutai communities, who live in stilt and floating houses, practice traditional fishing, and maintain customs tied to the Mahakam wetlands. Tanjung Isuy near the lake is known for Dayak cultural displays, crafts and traditional ceremonies that reflect the lake-dependent way of life.