Gabo Island is a 154-hectare (380-acre) island located off the coast of eastern Victoria, Australia, between Mallacoota and Cape Howe on the border with New South Wales. It is separated from the mainland by a 500 metres (1,600 ft) wide channel; access is available by arranged flights and boats. Gabo Island is a shipping reference commonly referred to in Victorian weather warnings issued by the Australian Bureau of Meteorology.