Ben went missing from his island home. His body has never been found

Ben Chisholm went missing on Magnetic Island in 2022 and his body has never been found. (ABC News)

Ben Chisholm disappeared from Magnetic Island in 2022, and his body has never been found.

An inquest into his disappearance ran for three days in Townsville this week, hearing from 13 witnesses, including family, police, and search and rescue crews.

Coroner Wayne Pennell will deliver his findings at a later date.

The family of a man who vanished from a tropical island in 2022 says the inquest into his death ends a horror four years, while maintaining hope of one day finding his body.

Ben Chisholm, 22, was last seen on Magnetic Island, 8 kilometres off the coast of Townsville, in July 2022.

His mother, Jackie Burgess, this week told a Townsville inquest into his disappearance that her son was full of life and that Magnetic Island was "Ben's island home".

Ben Chisholm's family has not given up hope of finding his body. (ABC News: James Tugwell)

The island, measuring roughly 7km long and 5km wide, became the focus of an extensive, year-long search for Mr Chisholm, which included SES volunteers, Australian Defence Force members, sniffer dogs, cadaver dogs, drones, helicopters and water police.

The inquest heard police trawled through hours of footage — particularly at the island's single port, to see if Mr Chisholm had caught a ferry off the island — and found no strong leads.

The search party found his clothing spread on a rock off a walking track in bushland, but his body has never been found.

He had no working phone at the time of his disappearance, the inquest heard, and he had no money and no bank card.

Mr Chisholm's sister, Shiralee Rosario, told the inquest she was her brother's closest friend.

Shiralee Rosario says she misses her brother every day. (ABC News: James Tugwell)

In the weeks leading up to his disappearance, she said something changed.

She said when talking to him, it was like "the lights were on, but no-one was home".

She recalled incidents in the fortnight before he disappeared, including finding Mr Chisholm asleep in her bed at her unit and awake at what she said were "unusual" hours of the night.

"There were signs that he didn't want to be in his own unit," she said.

Ben Chisholm, 22, was last seen on Wednesday at Nelly Bay, Magnetic Island. (Supplied: Queensland Police)

Three individual witnesses, who were the last known to have seen him alive, told the inquest that he appeared to be under the influence of something, dishevelled and talking to himself, when they saw him in the Nelly Bay area.

One of the witnesses, San