geothermal springs

Earth-heated water pools

Geothermal springs are natural water sources heated by underground volcanic or magmatic activity.

The water emerges warm or hot, sometimes scalding.

Hot springs have been used for bathing and therapeutic purposes since ancient times: We soaked in the geothermal springs after hiking.

When the water erupts periodically under pressure, the spring is called a geyser.

Related

sulfur smell · geysers · tectonics · mud baths · fumaroles · hydrothermal vents · travertine · thermophiles · Rotorua · plate boundaries · cultural rituals · steam rising · onsen · fault lines · aquifers · spa resorts · volcanism · tectonic plates

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Opposites
heat source

geothermal springsheated pools

Artificially warmed swimming basins

swimming pools · spa pools · jacuzzis

water temperature

geothermal springsmountain springs

Water sources in high terrain

glacial lakes · surface runoff · ice caves · artesian wells

Family

spring, thermal, geothermal

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Used worldwide · Timeless · Concrete · Positive · Rated G