Prey Pros is a seminatural and cultural site in Prey Preal village, Prey Preal commune, Kampong Svay district, about 16 kilometers northwest of Kampong Thom provincial town. The site encompasses 2 million square meters and includes a river that is 4,000 meters long and 30 meters wide. It is rich in Domrei fish.

The site is a venue for foot races, bicycle races and other games during national festivals. In addition, the provincial tourist office has organized other activities such as boat rides, fishing and swimming, and has erected resting cottages, where food and drink are for sale. The view from Prey Pros is beautiful and enchanting, while the wind that blows across the river will cool and refresh hot, tired tourists.