Grindavík is a fishing town situated in the Southern Peninsula district of Iceland, located near Þorbjörn on the far south-western part of the Reykjanes Peninsula. It stands on a lava field that erupted approximately 2,350 years ago from the Sundhnúkur crater chain and nearby volcanoes. As one of six communities on the peninsula situated on or near an eruptive fissure, it is among the few towns with a harbour on this coast, serving as a significant coastal settlement in the region.