Bouvet Island is one of the most remote islands in the world; Antarctica, over 1,600 km (1,000 mi) to the south, is the nearest land mass. Located near the junction of three tectonic plates, the island is mostly formed from a shield volcano that is almost entirely covered by glaciers. The prominent Kapp (Cape) Valdivia on the northern coastline is a peninsula formed by a lava dome. It is only along the steep cliffs of the coastline that the underlying dark volcanic rock is visible against the white snow and ice blanketing the island. Photo courtesy of NASA.