Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Nam Phron Thep Phanom is a sulfurous hot spring located in Chom Thong, in the Chiang Mai region. The water reaches around 42°C. The site offers an indoor bath and an outdoor bath (rotenburo), ideal for a relaxing soak.
Insider tip — Nam Phron Thep Phanom is a geothermal spring in the highlands south of Chiang Mai, close to Doi Inthanon National Park, where volcanic fissures produce sulfurous water in a forested mountain setting. The spring is used by local hill tribe communities who appreciate its soothing mineral waters. The cool mountain air at this elevation contrasts beautifully with the warm pool temperature. The proximity to Thailand's highest peak makes this an ideal stop on a Doi Inthanon trekking itinerary.