Deep geothermal water depth in regions ranging from about 150-1400 meters to xiaotangshan for the most shallow, less than one hundred meters.

Conservation actions include efforts to increase and stabilize geothermal water levels.

They try 'hot potting' in the geothermal waters, sing with a choir and go whale-watching, but find the perpetual daylight rather unsettling.

These are baths fed by geothermal waters.

The experiment was successful and a proof of concept, proving that geothermal waters could be used as process water to produce potable water in 2001.