Sentarum Lake National Park is representative of wetland lakes, freshwater swamp forest and tropical rain forest in Borneo. Lake Sentarum as a seasonal lake that is located in a national park is located on one side of the Kapuas river basin, which is about 700 km from the estuary to the South China Sea.Constrained by hills and plateaus that surround Lake Sentarum an catchment area as well as a regulator of the water system for Kapuas Watershed. Thus, the areas located downstream of Kapuas River is highly dependent on fluctuations in the amount of water being stored in the lake. Sentarum Lake National Park has the distinctive and original plant is tembesu / tengkawang ( Shorea beccariana ). There is also a lowland forest plants like jelutung ( Dyera costulata), ramin ( Gonystylus bancanus ), meranti ( Shorea sp. ), Keruing ( Dipterocarpus sp. ), And ironwood (Eusideroxylon zwageri ). The water system of freshwater lakes and inundated forest makes Lake Sentarum unlike othe