This is a list of selected Australian islands grouped by State or Territory. Australia has 8,222 islands within its maritime borders. Largest islands The islands larger than are: Tasmania (Tas) ; Melville Island, Northern Territory (NT), ; Kangaroo Island, South Australia (SA), ; Groote Eylandt (NT), ; Bathurst Island (NT), ; Fraser Island, Queensland (Qld), ; Flinders Island (Tas), ; King Island (Tas), ; and Mornington Island (Qld), . New South Wales Amherst Island, in Lake Mummuga Bare Island, near the north headland of Botany Bay Belowla Island, off Kioloa Beach Bird Island, located near Budgewoi, east of the Central Coast Boondelbah Island, at the mouth of Port Stephens Brisbane Water: Pelican Island Riley's Island St Hubert's Island (largely artificial, created by raising an inter-tidal wetland above high water level) Broughton Island, located north of Port Stephens Broulee Island, located off the coast at Broulee Brush Island, off Bawley Point Cabbage Tree Island, at the mouth of Port Stephens Cabbage Tree Island, in the Richmond River Carter's Island, in Botany Bay near the mouth of George's River Clarence River estuary: Ashby Island Chatsworth Island Freeburn Island Goodwood Island Harwood Island Micalo Island Palmer's Island Thorny Island Warregah Island Yargai Island Clark Island, in Sydney Harbour Cockatoo Island, in Sydney Harbour, originally used as a prison and later developed as a shipyard Comerong Island, in the Shoalhaven River estuary Coocumbac Island, in the Manning River at Taree Cook Island, located near Tweed Heads Crampton Island, off the mouth of Lake Tabourie Dalhunty Island, in Wilson River at Telegraph Point Dangar Island, a small forested island in the Hawkesbury River Darling Island, a former island subsequently bridged by land, in Sydney Harbour Elizabeth Island, in the Clarence River near Grafton Esk Island, in the north arm of the Clarence River Fatima Island, a tidal island of the Cook's River Fattorini Island, in the Macleay River near Smithtown Fort Denison, also known as Pinchgut Five Islands Nature Reserve, a group of islands off the coast of Wollongong: Bass Island Big Island Martin Island Red Island Tom Thumb Island Garden Island (no longer an island) Glebe Island (no longer an island) Goat Island, a rocky island in Sydney Harbour Green Island, a small island north of Smoky Cape Green Island, off the mouth of Lake Conjola Hexham Island, in the lower Hunter River Honeysuckle Island, in Wallaga Lake Horse Island, in Tuross Lake Joass