[1] Hafursey lies to the north of the black outwash plain of Mýrdalssandur, south of a side glacier of the Mýrdalsjökull, called Kötlujökull.

However, in the case of an island of a special kind, the numerous jökulhlaups of the Katla repeatedly remade it and contributed to its erosion.

[1] Kötlujökull plays a leading role in this, because it has the largest amount of glacier ice and water, which can then be released with a volume of up to 100,000 or even 200,000 m2 / sec.

[5] In earlier times the main route to southeast Iceland was across Mýrdalssandur at the foot of the mountain, a shelter was built there at the beginning of the 20th century.

[5] Hikers can go to Skálafjall, for example, first following the road track from the hut about 2.5 km (1.6 mi) to the west and then ascending via an incision, which in a certain way represents the extension of the Klofgil to the southeast.