Prek Toal Bird Sanctuary is situated at the main area of the Tonle Sap Biosphere Reserve. It is said to be the only single point breeding ground in the entire Southeast Asia. This sanctuary is spread over an area of 31,282 hectares at the tip of the Tonle Sap Lake. Birds like Milky Stork, Painted Stork, Black-headed Ibis, Lesser Adjuncts, Spot-billed Pelican, Grey-Headed Fish Eagle and many rare species of birds can be seen here. Flocks of migratory birds fill Prek Toal in the dry season and it is amazing to watch them here. To reach this sanctuary taxis and motors can be taken from Siem Reap to the boat dock. Boats are available to reach the sanctuary. Night accommodation is also available here for tourists who are interested in staying back to watch the early morning view.