Sinclair Island (Queensland)

Sinclair Island is a small, uninhabited island located in Queensland, Australia. It is part of the Great Barrier Reef Marine Park and lies within the Capricornia Cays National Park. The island is situated off the coast of Central Queensland, approximately 45 kilometers northeast of Gladstone.

Sinclair Island is primarily a coral cay, formed by the accumulation of sand and coral rubble on a reef platform. It is relatively low-lying and vegetated with typical cay flora, including grasses, shrubs, and some low-lying trees.

The island's primary ecological significance lies in its importance as a nesting site for seabirds and as a turtle nesting beach. Various species of birds, including noddies and shearwaters, utilize the island for breeding purposes. Green turtles and loggerhead turtles are known to nest on the island's beaches during their respective nesting seasons.

Access to Sinclair Island is restricted and requires permits from the Queensland Parks and Wildlife Service. This is to protect the fragile ecosystem and minimize disturbance to the nesting birds and turtles. The waters surrounding the island are popular for snorkeling and diving due to the diverse coral reefs and marine life. However, strict regulations are in place to ensure the sustainability of these activities.

The island's name is believed to be derived from a historical figure, although definitive records of its naming origin are scarce. Current management of Sinclair Island focuses on conservation efforts, including monitoring nesting populations, managing invasive species, and controlling visitor access.