Tonle Sap is a large freshwater lake located in central Cambodia. It is the largest lake in Southeast Asia and plays a crucial role in the region's ecosystem. The lake is known for its unique seasonal changes, expanding in size during the rainy season and shrinking during the dry season. This fluctuation supports a rich biodiversity, including various fish species that are vital for local communities. The Tonle Sap River connects the lake to the Mekong River, facilitating the movement of water and nutrients. The lake is also home to floating villages, where communities live on boats and houses built on stilts, adapting to the changing water levels.