Antarctic Sound

The Antarctic Sound separates the tip of the Antarctic Peninsula from Joinville Island and leads into the Weddell Sea, and the tabular icebergs that drift through it are far larger than anything on the western side. Brown Bluff, a volcanic cliff with an Adélie penguin colony at its foot, is the most visited landing here and one of the few on the continental mainland. Paulet Island holds a vast Adélie colony and the stone hut of a Swedish expedition that wintered there after its ship was crushed. Hope Bay shelters Argentina's Esperanza base. Ice often closes the sound entirely.