Umphang is a village in Tak Province, Northern Thailand. It lies ~165 km south of Mae Sot, about a 5 hr drive along a twisting mountain road.
Thi Lo Su waterfallphone: +66 55 514341-3address: Umphang Wildlife SanctuaryOriginating from Huai Klotho, the water flows down a mountain valley at a height of 200-300 m. The fall flows down in tiers surrounded by virgin forest. There is a trail to the waterfall from the wildlife sanctuary office. It takes approximately 15 min to walk, and there are places to stop and admire the impressive views from the top.