Phu Sang National Park covers approximately 178,049.62 rai (284.88 sq km), spanning the left bank of Nam Ngow Forest in Thoeng District, Chiang Rai, and Nam Pioi, Nam Yuan, and Nam Lao forests in Chiang Kham District and Phu Sang Subdistrict, Phayao Province.

The park consists of mountains and dense forests, rich in natural resources such as diverse plant species, wildlife, and scenic forest and mountain landscapes, ideal for trekking and nature study.

Attractions include:

• Phu Sang Waterfall (Hot Waterfall):
  The only hot waterfall in Thailand with water around 35°C while air temperature can be 10°C. Visitors enjoy soaking in the warm water, relaxing muscles, and exploring the surrounding nature trails.

• Huai Pong Pha Waterfall:
  A natural waterfall with trekking trails for nature observation and scenic views.

• Doi Pha Dam:
  A limestone mountain with large cliffs, perfect for sightseeing and photography.

• Nam Dan Cave:
  A cave for exploration and geological study.

• Nam Lod Cave:
  Explore the cave and learn about local geology.

• Pha Daeng Cave:
  A site for cave exploration and geological observation.

• Warm Spring Source:
  The source of Phu Sang Waterfall, with water around 35°C while air temperature is 10°C. The spring emerges from underground freshwater porous rock, surrounded by unique plants rarely seen elsewhere. Recommended activities include nature trekking and plant observation.

Phu Sang National Park combines mountains, waterfalls, caves, and hot springs, making it a complete natural attraction suitable for all ages.

By Car:

• From Phayao town, drive towards Chiang Kham District, then continue along Highway 1093 to Phu Sang District. Take local roads to the park. Parking is available for cars and motorcycles.

By Public Transport:

• From Phayao town, take a minivan or bus to Chiang Kham, then a local shared songthaew or taxi to the park (about 20–30 km).

• Best Time to Visit: June to February, avoiding the dry season and haze.

• Activities: Don’t miss soaking in the hot water of Phu Sang Waterfall; bring a change of clothes.

• Nearby Places: Close to Ban Huak, a Thai-Lao border trade checkpoint.

• Trekking Gear: Wear suitable shoes and bring appropriate equipment for hiking.

• Photography: Early morning is best for natural light; several scenic spots are ideal for photos.

Admission Fee: