Larne RNLI were requested to launch both of their lifeboats by Belfast Coastguard to reports of two people in the water 200 metres from Portmuck in Islandmagee.
Launching both lifeboats at 3.25pm on Friday afternoon (18 August) into rough seas with a stiff breeze, the lifeboats made their way to the casualties reported location at Portmuck.
Upon arrival the all-weather lifeboat, Dr John McSparran, located the first casualty floating near to the rocks at Portmuck harbour.
The lifeboat moved alongside and one volunteer crew member entered the water in a dry suit to help the casualty who was beginning to show the effects of being in the cold water for a prolonged period.
Using the hoist on the lifeboat, the casualty was brought onboard where the volunteer crew immediately started casualty care and administered oxygen.
At the same time the smaller in shore lifeboat, Terry, had located the second casualty along with the small punt the casualties had been using. The punt had been taking on water and was mostly submerged.
The volunteer crew threw a rope to the casualty and brought him into the lifeboat. The casualty was then transferred into the large all-weather lifeboat where casualty care was administered.
Both lifeboats made their way to the Larne Harbour where it was requested that the Northern Ireland Ambulance Service would meet the volunteer crew upon their arrival. Paramedics assessed both casualties and they were then transferred into the care of the Ambulance Service.
Allan Dorman, Larne Lifeboat Operations Manager, said:
"This was a challenging call for all of our volunteer crew members, but it is why we train regularly so that we are as prepared as we can be in scenarios like this.
"When you are planning to go to sea, ensure that you have a means of contacting the shore should you ever get into difficulties. It is vital to make sure that you are well prepared as the conditions can change very quickly and can catch out the most experienced sailors."