About Thi Lo Su Waterfall
Thi Lo Su Waterfall is Thailand's largest waterfall located inside Umphang Wildlife Sanctuary in Mae Chan, Umphang District, Tak Province. The limestone cascade drops approximately 250 metres high and spans about 450 metres wide across multiple tiers surrounded by dense evergreen forest. Recognized as a major natural attraction within the Thungyai-Huai Kha Khaeng Wildlife Sanctuaries complex, it is notable for its scale, seasonal flow and remote jungle setting requiring rafting and trekking to access.
Visitors guide
Visitors can expect a large multi-tiered limestone waterfall set in dense evergreen forest within Umphang Wildlife Sanctuary. Access involves a combination of 4WD road travel, rubber-boat rafting along the Mae Klong River and a 1.5 km forest walk to a viewing area at the base. The site offers broad cascades, mist-covered cliffs, natural pools, forest trails and viewpoints for sightseeing and photography. Facilities are basic and seasonal, with a visitor centre, camping area and local guides near the sanctuary entrance.
Key highlights
- 01
Largest waterfall in Thailand, about 250 metres high and 450 metres wide
- 02
Multi-tiered limestone cascade inside Umphang Wildlife Sanctuary
- 03
Part of the Thungyai-Huai Kha Khaeng Wildlife Sanctuaries UNESCO World Heritage complex
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Remote jungle setting accessible by 4WD, rafting and forest trek
- 05
Seasonal peak flow from late rainy season creating wide curtain of water
Culture & Context
The name Thi Lo Su comes from the Karen language meaning 'Black Waterfall' and the site holds local cultural value for Karen communities living around Umphang Wildlife Sanctuary
Route
| By air | Fly to Mae Sot Airport then continue by road to Umphang |
|---|---|
| By road |