The Tonle Sap River is a significant waterway in Cambodia, connecting the Tonle Sap Lake to the Mekong River. It plays a crucial role in the region's ecosystem and economy, providing water for agriculture and fishing. The river experiences seasonal changes, with its flow reversing during the monsoon season, allowing for nutrient-rich waters to nourish the lake. The river is also vital for local communities, supporting livelihoods through fishing and transportation. Its unique hydrology contributes to the rich biodiversity of the Tonle Sap Lake, which is home to various fish species and migratory birds, making it an important area for conservation.