Great Keppel Island is not considered a city; it is an island located off the coast of Queensland, Australia. Great Keppel Island is known for its beautiful beaches, clear waters, and coral reefs, making it a popular tourist destination. The island offers various accommodations, including resorts and camping options, and activities such as snorkeling, diving, and hiking. It does not have a permanent population, but there are facilities and services available for visitors to enjoy their stay on the island.