Op Luang National Park woodpecker, pheasant and partridge. Op Luang National Park Op Luang National Park () is a national park in Chiang Mai Province, Thailand. It is home to a scenic river canyon, waterfalls, and caves. Op Luang National Park is about south of Chiang Mai in Chom Thong, Mae Chaem and Hot Districts. The park's area is . It is contiguous with Doi Inthanon National Park. Like Doi Inthanon Park, Op Luang is in the Thanon Thong Chai Range. Prehistoric paintings and other artefacts have been found in Op Luang National Park. The Doi Pha Chang area has a cliff painting of
Doi Tung of various tribes including Akha, Lahu, Tai Lue, and Lawa. Wat Phra That Doi Tung is on top of the hill. According to the chronicles, this Buddhist place of worship dates back to the year 911. It is an important pilgrimage spot for the devout. Coffee plantations cover an area of 15 km. There are 3.5 million coffee trees on Doi Tung. Almost half of Doi Tung's population is in coffee farming, providing a stable source of income for nearly 900 families. Doi Tung Royal Villa, former residence of the princess mother Srinagarindra, is high up on the hill. Thanks