snowy sheathbill. It also houses one of the largest breeding colonies of Adélie penguin in Antarctica. At Trepassey Bay, gentoo and Adélie penguins also breed, as well as Cape petrels, snow petrels, skuas and kelp gulls. Weddell seals often haul out on the beach and leopard seals hunt offshore. References Important Bird Areas of Antarctica Landforms of Trinity Peninsula Landforms of the Joinville Island group Sounds of Graham Land