Namtok Huai Yang National Park

Namtok Huai Yang National Park is a protected forest park in Thap Sakae District, Prachuap Khiri Khan Province, covering about 161 sq km of the Tenasserim Hills near the Myanmar border. Established in 1991 as Thailand's 70th national park, it is known for its forested mountains, streams and tiered waterfalls, notably Huai Yang Waterfall, and for its biodiversity, hiking trails and camping areas.

Visitors can expect a forested mountain park with well-marked nature trails leading to tiered waterfalls and viewpoints. The main area includes the 5-tier Huai Yang Waterfall with pools, the Kha On Waterfall, forest streams, and hill viewpoints. Facilities include a visitor centre, campsite and bungalows. Activities centre on short hikes, nature observation, photography and seasonal swimming in designated pools.