High Quality Content by WIKIPEDIA articles! The Nuyts Archipelago, including the Isles of St Francis, comprises a group of mainly small and mostly granitic islands lying off Ceduna, South Australia, at the eastern end of the Great Australian Bight and the north-western coast of the Eyre Peninsula. Many of the islands support extensive colonies of Short-tailed Shearwaters, or muttonbirds, while its smaller islets and reefs provide breeding sites for Australian Sea Lions.