Tham Pla–Namtok Pha Suea National Park

Tham Pla–Namtok Pha Suea National Park (อุทยานแห่งชาติถ้ำปลา–น้ำตกผาเสื่อ) is a national park in Mae Hong Son Province, Thailand. It is home to caves, waterfalls and steep mountain terrain. It was established as a national park on 23 December 2010.

Geography
Tham Pla–Namtok Pha Suea National Park is about 18 km northwest of Mae Hong Son in Mueang and Pang Mapha Districts. The park's area is 394,120 rai ~ 630 km2. The highest point is Doi Lan peak at 1918 m in the Daen Lao Range. The northern and western sides of the park border Burma's Shan and Kayah states respectively.

Attractions
The park's main attraction is Tham Pla ("fish cave"), a water-filled cave hosting hundreds of soro brook carp. The fish are revered by locals and a nearby Hindu statue is said to protect them. Other caves include Tham Pha Daeng, a limestone cavern around 1 km in depth.

Waterfalls include the Pha Suea waterfall at 15 m high and Mae Sa-nga Klang waterfall also 15 m high. Mae Sa-nga Klang is above the Mae Sa-nga Dam, a hydroelectric dam 37 m high and 160 m long.

Flora and fauna
The park features forest types including mixed deciduous, deciduous dipterocarp, pine and evergreen. Tree species include Lagerstroemia floribunda, tabaek, Shorea obtusa, Shorea siamensis, Sindora siamensis, makha, Xylia xylocarpa, teak, Pterocarpus macrocarpus, Terminalia pedicelleta, takian, Tenasserim pine, and Khasi pine.

Animals in the park include goral, gaur, barking deer and wild boar.