Hawaii Five-O was a police TV series not a phone number - but it turned into a whole phone book for Hoyland holidaymaker Stewart Sweetman.
Stewart, 40, was on holiday catching some surf off Waikiki Beach in Hawaii when he spotted a cell phone underwater in a waterproof case.
He fished it out from its watery grave and began a quest to find its owner.
"It was a Japanese Ericsson phone and with the case would have cost about $1,000 in Japan," said Stewart. "The first thing was to go to a phone shop and change the phone language to English. Then we saw the phone had more than 650 holiday photos on it."
Realising how awful the loss must be for the phone's owner, Stewart, who works at Meadowhall, started calling numbers in its address book.
He said: "We called the numbers from another mobile phone that had long distance, and hoped we could find somebody who spoke English."
After many failed attempts, Stewart finally hit the jackpot. "I sent a text to one of the numbers and finally got a cryptic pidgin English response. Unbelievably, it turned out that the phone's owner had a friend in Hawaii, who could meet me and pick the phone up. Bingo!"
The phone's owner, Osamu Ono, has since suggested that Stewart and his partner Charlotte, who live in Woodhouse Road, Hoyland, visit Japan so he can thank them in person.
Stewart's uncle Philip Sweetman, who Stewart was visiting in Hawaii, said: "Osamu never thought he'd ever see his treasured holiday photos again. Stewart's really picked up Hawaii's 'Aloha Spirit' - a great love for others which is contagious."
