There are many hydrothermal wells distributed in the Yambajan hydrothermal area for generating electricity. And the Yambajan Hydrothermal Power Plant, jointly developed and constructed by China and the United Nations and completed in 1977, is currently the biggest hydrothermal power plant in China. The hydrothermal energy in the hydrothermal wells, transported by the pipeline, propels the turbines in the hydrothermal power plant to generate cheap and environmental electricity for Lhasa and the areas nearby.

The early morning in Yambajan is the most beautiful. In the cold morning, the hydrothermal fields are always suffused with white haze and the lake surface is always covered with great steam agglomerations, which is really fascinating and makes Yambajan a wonderland. If you are lucky enough, you may have a chance to witness the fantastic and splendid scene: the boiling water is erupting to the sky from the mouth of hot spring.

The hot spring in Yambajan, which contains high content of sulfureted hydrogen, is therapeutic to many chronic diseases. The bathing place is an open-air swimming pool. The hot spring, the temperature of which is too high, needs to be cooled in two open-air cisterns before it is available for bathing. With the snow-capped mountains in the distance, it is really an enjoyment to have a hot-spring bath in the swimming pool. Especially in winter, it is very pleasant and romantic to enjoy the heavy snowfall by bathing in the hot spring.

To have hot-spring in Yangbachen costs around 40 -60RMB per person. You can take a minibus to Yangbachen from Lhasa long distance bus station or you can rent landcruiser to Namtso via Yangbachen.