Thule

Ancient Greek explorer, Pytheas, was the first person to write about the mythical isle of Thule during his travels between 330-320 B.C. He described Thule as a land of fire and ice in which the sun never sets, which was located about six days of sailing north from Britain. This description by him closely resembles the island of Iceland in summer, which has Glaciers, volcanoes and is north of Britain.