TONLÉ SAP is a seasonally inundated freshwater lake/river system, connected to the Mekong River, in Cambodia, South Asia. Its size varies enormously during the year, affecting every form of life depending on this extremely productive echo-system.
The area is also well known for its wetlands and flooded forests, forming an extraordinary maze of adjoining habitats.
Due to its great biodiversity, Tonlé Sap has been designated as Unesco biosphere Reserve in 1997; yet, the area is at risk of pollution, over-exploitation and degradation.