Huai Kha Khaeng Wildlife Sanctuary

Huai Kha Khaeng Wildlife Sanctuary is a large protected area in western Thailand, centered in Lan Sak District, Uthai Thani Province, extending into Tak and Kanchanaburi provinces. Covering about 2,780 sq km, it is part of the Western Forest Complex and forms the Thungyai-Huai Kha Khaeng UNESCO World Heritage Site. It is notable for well-preserved seasonal tropical forests and high biodiversity, including tigers, elephants, banteng and over 400 bird species.

Visitors can expect a remote, forested sanctuary with limited public access focused around the headquarters area in Lan Sak. The site includes a visitor exhibition centre, the Seub Nakhasathien Memorial and museum, nature trails, and forest viewpoints. The landscape comprises mixed deciduous, dry evergreen and hill evergreen forests with rivers and streams. Wildlife sightings are possible but not guaranteed. Access beyond the headquarters requires advance permission and is typically with guided patrol or educational tours.