Keswick Island is a picturesque island in the southern half of the Whitsunday Islands. Located 34 kilometres north-east of the Queensland city of Mackay, Keswick Island is part of the Cumberland Islands of islands that lay protected inside the waters of the Great Barrier Reef Marine Park.
The island is inhabited by a small number of residents. It is a semi-popular tourist destination set to expand with planned development. Visitors can stay in a small number of catered and self catered accommodation. The island has its own airstrip and is accessible from Mackay Airport by a short plane flight or by private boat.