Couchfish Day 212: A day on the water

Just to the west of Siem Reap and Angkor lies the Tonle Sap—the largest freshwater lake in Southeast Asia. Through a quirk of river currents, in wet season when the Mekong is at full tilt, the flow reverses up the Tonle River, filling the lake. This reverse flow traditionally would see the Tonle Sap expand from around 2,500 km2 to 16,000 km2. This inflo…