The park's reservoir, Mae Ngad Dam, was created by damming the Mae Ngad River, a tributary of the Ping River.
The limestone topography within the park contributes to several karstic cave systems.
The park is home to a portion of the Si Lanna forest complex, which is one of the largest remaining contiguous forest areas in Northern Thailand.
The reservoir features dozens of permanent floating wooden bungalows that function as both accommodation and dining venues.
Large portions of the park's terrain remain inaccessible by road, preserving significant habitats for undisturbed fauna.
Sri Lanna National Park covers approximately 1,400 square kilometers across the Mae Taeng, Phrao, and Chiang Dao districts. The park's central feature is the Mae Ngad Somboon Chon Dam reservoir, which facilitates boat-based recreation and floating raft houses. The terrain is characterized by rugged limestone mountains and deciduous forests ranging from 400 to 1,700 meters in elevation. Wildlife in the park includes barking deer, wild boars, and a variety of bird species including hornbills. The park serves as a critical watershed area for the Mae Ping River basin. The reservoir area is the primary access point for visitors looking to engage in kayaking and swimming. Several hiking trails lead to waterfalls such as Mon Hin Lai, though access varies by seasonal rainfall levels.
The viewpoint overlooking the reservoir near the Mae Ngad Dam crest at sunrise.
Rent a long-tail boat from the Mae Ngad Dam pier to reach the more secluded floating raft houses.
Bring waterproof bags for electronics if you plan to engage in water sports on the reservoir.
Consult local park rangers about current trail conditions, as some paths become overgrown or slippery during the rainy season.
Do not attempt to swim in the reservoir outside of designated zones or near boat traffic lanes.
Some remote hiking trails may be temporarily restricted during the peak of the rainy season for safety.
Maintain a quiet demeanor near wildlife areas; carry out all trash; modest dress is appreciated when interacting with local boat operators.
