Transfer to Tonle Sap for an interesting day on the great lake. Visit Chong Kneas floating village by boat and then continue over the lake to Prek Toal, about an hour and a half away. Visit the floating village with its shops, market, crocodile farm and environmental centre. Observe the local fishing methods and explore the biosphere reserve in a sampan with a local guide. The lake and flooded forest are home to many species of rare waterbirds including Greater and Lesser Adjutant, White-shouldered Ibis, Painted Stork and Oriental Darter. Lunch is in a floating house. Return to Siem Reap at around 16:00.