Si Lanna National Park

Si Lanna National Park is a large protected area in Mae Taeng, Chiang Dao and Phrao districts of Chiang Mai Province, northern Thailand. Established in 1989 and covering about 1,406 square kilometres, it encompasses forested mountains, the Mae Ngat Somboon Chon Reservoir, limestone caves and waterfalls. The park is notable for its reservoir scenery with floating houses, diverse flora and fauna, and outdoor recreation such as boating, trekking and camping.

Visitors can expect a forested mountain landscape centered on the Mae Ngat Somboon Chon Reservoir with emerald water, floating raft houses and limestone cliffs. Areas to explore include the reservoir by long-tail boat or kayak, viewpoints, nature trails, waterfalls such as Buatong Waterfall and caves. The environment is natural and tranquil with opportunities for sightseeing, photography, camping and wildlife observation. Facilities are concentrated around the reservoir and park headquarters.

Established on 1 August 1989 as Thailand's 60th national park, covering approximately 1,406 square kilometres across Mae Taeng, Chiang Dao and Phrao districts. The park was created to protect watershed forests of the Ping River basin and the Mae Ngat Somboon Chon Dam reservoir area.

Named after the historic Lanna Kingdom that flourished in northern Thailand, reflecting the region's cultural heritage. The area includes local communities whose livelihoods are linked to the forest and reservoir.