Gia Long or Dray Sap Thuong (Upper Dray Sap) waterfall, is located in Dak Sor commune, Krong No district. It is in the upper reaches of the system of three waterfalls: Gia Long, Dray Nur and Dray Sap in Serepok River. The spectacular 30-m. waterfall spans 100 m., and has rope bridges & other viewing platforms.The Waterfall and the space of jungle nearby, embraces the Tam Tien lake (Naked Bathing Lake) where you will see naked people bathing.This natural creation covers 80 sq m in width and moreover, is located in the rapid scheme of Seropok, it still has the pure water line from the inside of the mountain.Formerly, King Gia Long had a road built to reach this waterfall. He also intended to build a suspension bridge across the waterfall. However, the bridge was never completed and no one knows why only two bridge's piers were dug, which still remain now.The beautiful landscape of waterfall and clear and pure lake makes the site attractive to natural lovers which come and rest here.