The South Sandwich archipelago is reached by a cold current from out of the Weddell Sea. That is why pack-ice from the Weddell Sea surrounds the islands much of the year. The current also delivers huge ice-bergs that have broken off from the ice-shelves of the Antarctic Continent. In the shallows around the islands the ice-bergs run aground and are slowly carved into the magnificent blue ice-sculptures that are a dream for photographers.
The South Sandwich Islands consist of eleven volcanic islands of which many have shown volcanic activity during the last hundred years. The most recent eruption was in 2005 when Mount Belinda, the 1370 metres (4495 feet) high volcano of Montague Island erupted.