4.3
Caves & cenotes
Grjótagjá Cave
Mývatn, Iceland
Formed by volcanic activity, Grjótagjá Cave in Mývatn houses a geothermal hot spring, which gained fame as a bathing spot in the 18th century. The water inside often exceeds 50°C, steam mingling with the jagged walls of ancient lava rock.
Good to know
- Best months
- Jun–Aug
- Getting there
- Best as a day trip
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