Grjótagjá

Also known as Grjotagja

thumb|Grjótagjá cave in summer 2009 thumb|Landscape above Grjótagjá cave Grjótagjá () is a small lava cave near lake Mývatn in Iceland. It has a thermal spring inside.

Wikidata facts

Instance of: cave
Country: Iceland
Located in: Þingeyjarsveit
Image: Grjotagja cave Iceland 1.JPG

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Commons category: Grjótagjá caves
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thumb|Grjótagjá cave in summer 2009 thumb|Landscape above Grjótagjá cave Grjótagjá () is a small lava cave near lake Mývatn in Iceland. It has a thermal spring inside.

In early 18th century the outlaw Jón Markússon lived there and used the cave for bathing. Until the 1970s Grjótagjá was a popular bathing site. But during the eruptions from 1975 to 1984 the temperature of the water rose to more than 50 °C (122 °F), though the temperature is slowly decreasing and has fallen below 50 °C again. The nearby lava cave of Stóragjá is being used as an alternative bathing site.

Excerpted from Wikipedia’s “Grjótagjá” article, available under the CC BY-SA 4.0 licence.