San Kala Khiri National Park

San Kala Khiri National Park is a protected forest area in Sadao District, Songkhla Province, near the Thailand-Malaysia border. Covering part of the Sankalakhiri mountain range, it preserves tropical rainforest, mountain ridges and watershed forests. The park is notable for its dense evergreen forest, waterfalls and biodiversity, and serves as an important natural border area. It offers visitors nature trails, viewpoints and opportunities to observe flora and fauna in a relatively undeveloped setting.

Visitors can expect a forested mountain park with dense evergreen and tropical rainforest, ridges of the Sankalakhiri range, and small waterfalls and streams. Facilities are basic and focused on nature appreciation, with park headquarters, nature trails, viewpoints and camping areas. The environment is quiet and relatively undeveloped, suitable for hiking, birdwatching and photography. Access is via local roads from Sadao town, and exploration is on foot along marked trails.

Established to protect the forests and watershed of the Sankalakhiri mountain range along the southern border. Declared as a national park in the 1990s as part of Thailand's national protected areas system managed by the Department of National Parks, Wildlife and Plant Conservation.