 The island's interior, the Highlands of Iceland, is a cold and uninhabitable combination of sand, mountains, and lava fields.The major towns are the capital city of Reykjavík, along with its outlying towns of Kópavogur, Hafnarfjörður, and Garðabær, nearby Reykjanesbær where the international airport is located, and the town of Akureyri in northern Iceland.The island of Grímsey on the Arctic Circle contains the northernmost habitation of Iceland, whereas Kolbeinsey contains the northernmost point of Iceland.