Sai Yok National Park

Sai Yok National Park is a protected area in Sai Yok District, Kanchanaburi Province, western Thailand, along the Khwae Noi River near the Myanmar border. Established in 1980 as Thailand's 11th national park, it covers about 500 square kilometres of mixed deciduous and dry evergreen forest. The park is known for Sai Yok Yai and Sai Yok Noi waterfalls, limestone caves such as Tham Lawa and Tham Daowadueng, river scenery, and remnants of the World War II Death Railway.

Visitors can expect a forested mountain landscape along the Khwae Noi River with waterfalls, limestone caves, and river viewpoints. The park has a visitor centre, marked nature trails, cave entrances with stalactites and stalagmites, and riverside areas for sightseeing and photography. Activities include short hikes, cave exploration, boating and rafting on the river, and observing forest scenery. Accommodation includes park bungalows and campsites near the headquarters and waterfall areas.

Established on 27 October 1980 as Thailand's 11th national park, covering about 500 sq km. The area includes sections of the World War II Death Railway built along the Khwae Noi River, and the park's waterfalls were historically visited by King Rama V.