Kleifarvatn is situated in the southern part of the Reykjanes peninsula, on the fissure zone of the Mid-Atlantic Ridge. It is the third largest lake in of southern Iceland. The lake's greatest depth is 97 m., making it one of the deepest lake of the contry.
After an earthquake in the area in the summer of 2000, the lake began to diminish, and 20% of its surface has since disappeared. The cracks that opened up in the earthquake have since then slowly filled again and by 2008 the lake had regained its previous surface level.
The barren, volcanic surroundings of the lake are unique and beautiful. According to legends, a monster in the shape of a worm and size of a medium sized whale occupies the lake.
After an earthquake in the area in the summer of 2000, the lake began to diminish, and 20% of its surface has since disappeared. The cracks that opened up in the earthquake have since then slowly filled again and by 2008 the lake had regained its previous surface level.
The barren, volcanic surroundings of the lake are unique and beautiful. According to legends, a monster in the shape of a worm and size of a medium sized whale occupies the lake.



