Iceland is located in the North Atlantic Ocean just south of the Arctic Circle, which passes through the small island of Grímsey off Iceland's northern coast, but not through mainland Iceland. Unlike neighbouring Greenland, Iceland is a part of Europe, not of North America, though geologically the island is part of both continental plates. Because of cultural, economic and linguistic similarities, Iceland is one of the Nordic countries and participates in Nordic cooperation. The closest bodies of land are Greenland and the Faroe Islands. The closest distance to the mainland of Europe is 970 km to Norway.