A JET ski expert has mysteriously vanished off a holiday isle.

A large-scale air and sea search is underway off Bali to find 41-year-old Jeremy Hoyland from Penistone.

The married dad of two has not been seen since Friday afternoon when he went out with four friends on sea scooters to the nearby isle of Nusa Lembongan.

But he became separated and hours later sent a text message that he was only a couple of miles from the shore.

An expert in the world of jet ski scooter racing, Mr Hoyland had just finished an assignment as race director at the world jet ski scooter finals in the USA and had been invited to Bali for the Asian Beach Games as a guest of the organisers.

Mr Hoyland, who works in the family's engineering business, was expected to return to Tanjung Benoa beach a few hours after he set off with his friends, but never arrived.

The rest of the party returned with two scooters during the afternoon, but Mr Hoyland had become separated from them.

A search then began with both helicopters and boats.

Bali Police chief Insp Gen Asikin Husein told the Jakarta Post: "On their way back, a member of the group said he was tired so Jeremy, who is an international jet ski master, offered to escort the group from behind.

"He didn't arrive at the base camp, however, when the others did."

Mr Husein said Mr Hoyland had sent a text message from his mobile phone about five hours after the others had returned to say he was about two miles from the beach.

He added that the search was being concentrated to the south on the assumption Mr Hoyland had been dragged away by a wave.

Jonathan Oddie, a close friend of the ex-Penistone Grammar School pupil, said Mr Hoyland had 10 years experience in the sport.

He added that his friend's wife, Jacqui, and brother, Nicholas, had now flown out to Indonesia, leaving the couple's two daughters behind.

Mr Oddie said: "There is still plenty of reason to be positive. Jeremy is an experienced jet skier and if he has managed to get to land I think his chances are quite high.

"There are hundreds of small islands in that vicinity, but a lot are uninhabited and some only have small populations with poor communications with the outside world.

"If he is on an island it could be pretty hard to find him, but we will find him. If he's in the sea, he hasn't a lot of chance.

"But he's a strong guy and we're quite confident he'll make it."

A Foreign Office spokeswoman said: "Indonesian authorities have carried out extensive sea and air operations in their search for Mr Hoyland."

In June this year, British divers Charlotte Allin, James Manning and Kathleen Mitchinson were rescued off Bali's eastern coast after going missing for two days.