Dray Sap waterfall is the downstream waterfall in the system of three waterfalls Gia Long - Dray Nur - Dray Sap of the Serepok river, Dak Nong Province, 30km South of Buon Ma Thuot City. The waterfall is nearly 20m high but 100m wide. In Ede language, Dray Sap means the smoke waterfall because the water stream falling from a high position creates a misty spray resembling  smoke. All year round, the region resounds from waterfall and is flooded in the vaporous water smoke.