Kangaroo Island is Australia's third-largest island, after Tasmania and Melville Island. It lies in the state of South Australia 112 km (70 mi) southwest of Adelaide. Kangaroo Island is one of South Australia's most popular tourist attractions. Kangaroo Island is a natural sanctuary for native Australian animals. In the south-west corner at Flinders Chase National Park, be awed by two of Australia’s most fascinating coastal landmarks, the Remarkable Rocks and Admirals Arch.