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. Reynisdrangar stacks are a collection of 66 m high rock pillars that rise out of the sea and are of the same geological formation as Reynisfjall. On Reynisfjöru beach, very beautiful basalt formations in the south part of the mountain can be seen, and there you will find an exceedingly beautiful cave called Hálsanefshellir.

See on map

63.401031931, -19.025764473|Reynisfjall, Reynisdrangar, Reynisfjara|Mainly Geology|/media/1424/Í-fjörunni_Snorri-Sævarsson2012.jpg?w=250&h=109&mode=crop|/geosites/reynisfjall-reynisdrangar-reynisfjara/