Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Pong Bua Ban Hot Spring is a natural geothermal site in northern Thailand, where the Thai word 'pong' denotes a hot spring or boiling water source, here located near the village of Bua Ban in the highland landscape of the Thai-Myanmar border region. The sulfurous spring waters emerge at temperatures close to boiling, creating a dramatic display of steam and mineral deposits that gives the site a visually striking appearance. Local communities in this forested mountain area have traditionally used the spring waters for cooking, bathing, and everyday well-being, continuing a practice of hot spring use integral to the highland culture of northern Thailand.
Insider tip — Pong Bua Ban Hot Spring is a community-managed thermal site in the highlands north of Chiang Mai, where sulfurous waters emerge at gentle temperatures perfect for relaxed soaking. The surrounding teak forest creates a secluded ambience beloved by trekkers on the Mae Rim circuit. Egg-boiling stations near the hottest vents are a local tradition and a fun culinary experiment. Arrive early to enjoy the spring in a misty mountain morning before day trippers arrive.