Grjótagjá
Good to know
- Best time to go
- year-round
- Budget
- $
- Accessibility
- limited
- Coordinates
- Open in maps
This lava cave near Lake Mývatn holds a small geothermal pool that glows in shades of blue. Once popular for bathing, its water grew too hot after nearby eruptions, so visitors now come to look rather than swim.
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