The woman had been hiking on Lizard Island, 250km (155 miles) north of Cairns, with fellow passengers from the Coral Adventurer cruise ship on Saturday but is believed to have broken off from the group to have a rest. The ship left the island around sunset but returned several hours later after the crew realised the woman was missing. A major search operation found her body on Sunday morning. No details have been released. The Australian Maritime Safety Authority (Amsa) said it was investigating and would meet the ship's crew later this week.

It is understood the woman, who has not been named, was on the first stop of a 60-day cruise around Australia, with tickets costing in the tens of thousands of dollars for the journey. She had joined a group hike to the island's highest peak, Cook's Look, before she decided she needed to rest, according to the Courier Mail newspaper. But she did not make it back to the ship, which then departed without her.

Traci Ayris was sailing near the island last weekend and told the Australian Broadcasting Corporation (ABC) that she saw a helicopter using a spotlight to search a walking trail on the island at around midnight on Saturday. She said about seven people with torches went to the island to search but it was called off at around 03:00 on Sunday (18:00 GMT Saturday) with a helicopter returning on Sunday morning when the body was apparently found.

"We knew she was dead because they called everyone back from the search immediately," she told ABC. "And no-one went to the spot that the chopper was hovering over until later that day when the police arrived." A spokesperson for Amsa said it was first alerted to the missing woman at around 21:00 on Saturday by the ship's captain. The authority said it would work with other relevant agencies to investigate the case and that it takes the safety of passengers and crew onboard commercial vessels seriously. (BBC)