Tonlé Sap
Located on the lower Mekong basin, Tonle’ Sap is the largest freshwater lake in Southeast Asia. Because of the seasonal changes, its size fluctuates. During the dry season, the lake shrinks as the water flows out of the lake into the rivers. During the wet season, the lake expands as the water flows into the lake from the rivers. and the water level rises as much as 30 feet. Thus, it acts as a natural reservoir.
