Ob Khan National Park, Chiang Mai

Crystal-clear mountain streams cascade over smooth granite boulders, creating natural swimming pools that have made Ob Khan National Park one of northern Thailand’s most refreshing escapes. This compact park protects a precious stretch of the Khan River valley, where ancient rock formations and lush forest create a natural playground just minutes from Chiang Mai city. Unlike Thailand’s larger national parks, Ob Khan offers an intimate experience where visitors can easily explore multiple scenic spots in a single day.

Follow the main trail along the Khan River to discover a series of natural rock pools perfect for cooling off in the mountain-fed waters. The park’s signature granite gorge features sculpted stone formations carved by centuries of flowing water, creating dramatic narrows and wide basins ideal for swimming and photography. Listen for the calls of hornbills and kingfishers echoing through the valley, while colorful butterflies flutter between flowering trees along the riverbank. Short hiking trails branch off from the main path, leading to quieter pools upstream and viewpoints overlooking the forested canyon.

Peace defines the Ob Khan experience, with only the sound of rushing water and birdsong breaking the forest silence. Early morning visits offer the most serene atmosphere, when mist still clings to the river surface and wildlife is most active. The cool mountain water provides instant relief from Thailand’s heat, making this a particularly rejuvenating destination during the hot season. Families and solo travelers alike find the park’s manageable size and easy trails create a relaxed, unhurried pace perfect for reconnecting with nature.

Visit between November and April when water levels are ideal and temperatures comfortable for hiking. The park lies about 20 kilometers south of Chiang Mai city center – rent a motorbike or join a tour for easy access. Bring swimwear, water shoes for slippery rocks, and a waterproof bag for electronics. Best of all, entry is completely free for all visitors. Camping isn’t available, but the park’s proximity to Chiang Mai makes it perfect for half-day trips combining natural beauty with urban convenience.