After swimming across the harbour to the moored boat the teenager called for help. Belfast Coastguard co-ordinated the rescue and sent the Portrush ILB Lifeboat and the Coleraine Coastguard Rescue team to the scene.

The Portrush lifeboat took the teenager from the boat to the pontoon where he received first aid from the Coastguard Rescue team before being transferred to hospital by ambulance.

Belfast Coastguard Watch Manager Alan Pritchard said:
"It may be summer but the sea is chilly and the cold can seriously affect swimmers.
"If you are going to take a dip please know you're limits and remember cold water shock can be dangerous, even if you're young and fit and think you're able."

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