Reynisdrangar are basalt sea stacks situated under the mountain Reynisfjall near the village Vík í Mýrdal, southern Iceland which is framed by a black sand beach that was ranked in 1991 as one of the ten most beautiful non-tropical beaches in the world. Reynisfjall is a 340 m high tuff mountain arising out of a volcanic eruption from under a glacier in the penultimate Ice Age, near the village of Vik.
Alternating in an irregular manner are layers of tuff, pillow lava and columnar basalt veins and loops. Legend says that the stacks originated when two trolls dragged a three-masted ship to land unsuccessfully and when daylight broke they became needles of rock. Nota Bene: The waves at Reynisfjara are especially strong and unpredictable, and fatal accidents have occurred at this beach, so people are advised to take extra care when visiting the area.