The man, identified only as Sakorn, was walking in Suan Luang Park in Phuket Town when he was asked by a group of teenagers to help them retrieve the model boat, which had developed mechanical problems. They told him they would pay him to get it back for them.
Mr Sakorn climbed down into the water but then got into trouble himself. The teenagers managed to get him back to land but, seeing that he was in a bad way, they called the Kusoldharm Rescue Foundation.
Rescue volunteers performed CPR and then took Mr Sakorn to Vachira Phuket Hospital, where he is recovering well. One of the teenagers has promised to pay all his medical costs.