Southern Thule is a collection of the three southernmost islands in the South Sandwich Islands: Bellingshausen, Cook, and Thule (Morrell). The island group is barren, windswept, bitterly cold, and uninhabited. It has an extensive exclusive economic zone rich in marine living resources managed as part of the SGSSI fisheries. The Admiralty's Antarctic Pilot says that Southern Thule is part of an old sunken volcano, and is covered with ash and penguin guano. There are seals, petrels, and a bank of kelp just offshore, especially around a small inlet on Morrell called Ferguson Bay.