Mr Pixley, 23, said: “I just had to keep as calm as I could. I was getting quite tired and I was freezing.
“It had been really hot by the car when we left but obviously it wasn’t that warm far out into the sea.”
The boat’s skipper called 999 and Mudeford RNLI lifeboat took the couple to shore to a waiting ambulance.
Mr Pixley said: “Bring not just a phone but also a waterproof pouch and a VHF radio, in case it does drop in the water or you lose it.
“Go out with a few people to keep an eye on you as well. Try to be in an area where there are other people so you can attract attention if it does go wrong.”
RNLI volunteer helm Andy Read, said: “We’d also remind everyone to take a means of communication, wear a lifejacket and tell someone where you are going and when you expect to be back.”