Area prevention manager Senior Sergeant John Fookes said, due to the treacherous nature of the river, a rescue helicopter was dispatched and within half an hour was hovering by each of the three swimmers and rescuer so they could climb aboard to safety.
“This was an incredibly close call for the young men, and it was so lucky someone saw what was happening and heard the screams for help,” he said.
“A very short distance downstream the river hits the Nevis Rapids, which become grade 5 and are incredibly unforgiving.
“Had they been swept any further downstream, we would have been dealing with an entirely different scenario.”