Tengchong Volcanic Hot Sea
The Tengchong Volcanic Hot Sea (Rehai) is the most spectacular geothermal area in China, located about 20 kilometers southwest of Tengchong city. Over 80 hot springs, fumaroles, and boiling pools are scattered across a lush valley. The most famous feature is the "Big Boiling Pot" (Dagun Guo), a boiling spring reaching 97°C. Visitors can soak in therapeutic mineral pools, watch steam vents hissing from the mountainside, and even cook eggs in the natural boiling water.







