Pha Sert Hot Spring is located on the edge of the Pong Nam Ron creek. Ban Pha Serit Phatthana, Village No. 6, Doi Hang Subdistrict, Mueang Chiang Rai District Chiang Rai In the past, Pha Sert hot springs were located in the marshy area near the Kok River. In the rainy season, the amount of water in the Kok River floods the hot spring area for several months and a serious lack of hot water use, only the bamboo shoots are soaked and boiled. Later, in 2002, Doi Hang Subdistrict Administrative Organization initiated the development and improvement of the landscape around Pha Serd Hot Spring. by requesting a budget from the Chiang Rai Provincial Administrative Organization and the budget of the Doi Hang Subdistrict Administrative Organization until the present Development and improvement has been completed to a certain extent, Pha Serit hot springs can open a large open-air public bath for health, a mineral bath building, a separate mineral bath with a spa system, 3 buildings, 8 rooms, Thai massage service, Tent rental service, and Group camp fire And in the same area, there is also Pha Serd Elephant Camp, which offers elephant tours to the lotus fields in winter that bloom throughout the valley. Take a tour of the Akha hill tribe village Lahu tribe and Huay Kaew waterfall tour both near and far In addition, Ban Pha Serd Pier was established. Let tourists who raft along the Kok River come from Ban Thaton. Or take a long-tail boat to take a sightseeing tour up and down the Kok River. You can take a break to take a mineral bath, ride an elephant, visit a waterfall or visit nearby hill tribe villages as well.