In March 2005 the island was opened to the public for the 'Cockatoo Island 2005 Festival' Cockatoo Island Festival. The island is now looked after by the Sydney Harbour Federation Trust which wants people to come and visit. The island's history will be a big attraction. The prison buildings were listed as a World Heritage Site in 2010, along with ten other convict sites around Australia. Large workshops, slipways, wharves, houses and other buildings show the island's ship building history.