Grænavatn - the green explosion crater lake

            Just a few kilometers south of the Geothermal area Seltún at Krísuvík is a small lake, Grænavatn (Greenlake). The lake is a volcanic crater that got its name from its unusual green color. The color is due to a high level of sulphur in the water and its depth.  The lake is only about few hundred meters in diameter and offers a perfect trail for a refreshing walk, as it only takes about 20 minutes to walk around the lake.  For a small lake it is quite deep, though, or 45 meters.  This is visible as you stand by the brim, and you can see how the color changes by the shoreline where the lake gets deeper. Grænavatn is considered by geologists to be one of the most noteworthy geological phenomena of its kind in Iceland.

Due to its unusual nature and color, the lake has been a source of folklore stories throughout the centuries.  Only as recently as the middle of the 16th century an odd creature was spotted coming from the lake.  The lake is almost on the main road Krísuvíkurvegur (42) and can be seen as you pass by it only a few hundred meters from Seltún the geothermal area.

Taken in: Ísland / Gullbringusysla (show map)

Taken on: July 7, 2017

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Grænavatn

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Sets appears in: • ICELAND

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