The 18-year-old was tossed into the water when his dinghy capsized and managed to cling on long enough to reach his handset.
With virtually no battery power left he quickly typed out the word ‘stranded’ and posted it on Facebook.
A concerned mate saw the message and rang the lad’s mum who raised the alarm and triggered a massive search and rescue operation.
The teen had been treading water for two hours in the dark by the time he was spotted by a lifeboat crew and hauled out of the sea a mile off Mevagissey, Cornwall.
Jeremy Lynn from Brixham Coastguard said he was able to type a solitary word before the battery drained.
He said: “The message just said ‘stranded’. One of his friends picked it up and passed it to his mother.
“It was obviously one of the last methods he had of using his mobile phone to call for help.”
More details: www.watersafetymap.co.uk/map/details/210
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