Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Tengchong Rehai Hot Springs is a renowned thermal spa located in Tengchong, Yunnan, China. The site is known for its rich geothermal activity, with numerous hot springs and geysers dotting the landscape. Visitors can soak in the warm, sulfurous waters, appreciated for the relaxation and well-being they offer. The surrounding area offers stunning natural scenery, with lush forests, rolling hills, and traditional villages to explore, making it an ideal destination for those seeking relaxation and cultural immersion.
Insider tip — Tengchong's Rehai geothermal area in western Yunnan hosts one of China's most spectacular geothermal landscapes, where boiling springs, geysers, and mud cauldrons reach up to 96°C alongside active volcanoes. The site sits near the Myanmar border in the Hengduan Mountains, a region of extraordinary biodiversity. Cooled bathing pools adjacent to the active venting fields allow visitors to experience thermal waters safely within sight of the raw geothermal spectacle.