Fitzroy Island (originally Koba or Gabar) is a continental island out from Djujbirri (formally known as Cape Grafton), 29 km south-east of Cairns, Queensland, Australia. It is a large tropical island, with a rainforest covering and its own fringe coral reef system. The island has a total area of 339 hectares (838 acres). The highest point of the island is 375 metres above sea level.
Fitzroy Island is a 45-minute ferry ride (about 30 km) from Cairns and is surrounded by a reef system that forms part of the Great Barrier Reef Marine Park. Nearly all of the continental island is protected within the Fitzroy Island National Park. It is covered in tropical rainforest. Four walking tracks have been established.