About Wiang Kosai National Park
Wiang Kosai National Park is a protected forested mountain park spanning Phrae and Lampang provinces in northern Thailand, with its main entrance and headquarters in Wang Chin District, Phrae. Established in 1981, it covers about 410 square kilometers of rugged highlands. The park is notable for its two-tiered Mae Koeng waterfalls, Mae Sin natural hot springs, Doi Mae Tom viewpoint, and dense mixed deciduous and evergreen forests supporting diverse wildlife and hiking trails.
Visitors guide
Visitors can expect a mountainous forest landscape with hiking trails through mixed deciduous and evergreen forest, two main waterfalls (Mae Koeng Luang and Mae Koeng Noi), natural hot springs at Mae Sin with designated bathing pools, and the Doi Mae Tom viewpoint offering panoramic views. The park has a visitor centre, camping grounds and bungalows, nature trails, and opportunities for sightseeing, photography and nature study in a quiet, natural setting.
Key highlights
- 01
Mae Koeng Luang Waterfall - two-tiered waterfall with year-round flow
- 02
Mae Koeng Noi Waterfall - smaller forest waterfall near the main falls
- 03
Mae Sin Hot Spring - natural hot spring with 80°C source and designated bathing pools
- 04
Doi Mae Tom Viewpoint - mountain viewpoint with panoramic forest views
- 05
Dense mixed deciduous and evergreen forests with diverse flora and fauna
- 06
Hiking and nature trails through rugged highlands
History of Wiang Kosai National Park
Established on 3 October 1981 as Thailand's 14th national park, covering approximately 410 square kilometers across Wang Chin District in Phrae and Mae Tha, Sop Prap and Thoen districts in Lampang. Named after the ancient Wiang Kosai area, it was created to protect watershed forests and natural features of the Phi Pan Nam Range.
Route
| By air | Nearest airports are Phrae Airport (PRH) and Lampang Airport (LPT). Continue by road from either airport. |
|---|---|