Hayman Island is the most northerly of the Whitsunday Islands, off the coast of Queensland, Australia. The island is 294 hectares and lies to the north-west of Hook Island. It is a private island open to the public, most famous for its luxury resort which was built in the 1950s by Ansett Transport Industries. The island is a significant for tourism in Queensl…Hayman Island is the most northerly of the Whitsunday Islands, off the coast of Queensland, Australia. The island is 294 hectares and lies to the north-west of Hook Island. It is a private island open to the public, most famous for its luxury resort which was built in the 1950s by Ansett Transport Industries. The island is a significant for tourism in Queensland. The resort is managed by the InterContinental Hotels Group.