Geirshólmi in Hvalfjorður
During the Sturlung Age 1220 - 1264, a company of men led by Svarthofdi Dufguson, a follower of Sturla Sighvatsson used the island Geirsholmi as a base for raiding the surrounding countryside.
The tourist service at Bjarteyjarsandur nearby offers storytelling trips about Geirsholmi.