Sea survival experts from the University of Portsmouth have been sharing their latest research with the RNLI. Around 60 per cent of deaths in cold water happen within the first few minutes of entering the water.
The scientists are using an extreme environment lab with chambers capable of simulating temperatures as low as minus 25 degrees. Their data may help improve survival rates.
The RNLI says the emergency services have launched a search for a missing swimmer at Camber Sands in Sussex.
Earlier this week five men on a day trip from London died at the Sussex beach after getting into difficulty in the water.
A teenager has drowned and two other men are in hospital after getting into difficulty in the sea over the weekend.
It happened at Camber Sands on the Kent/Sussex border yesterday afternoon.
The beach was crowded at the time, there were beach patrol officers on duty but no lifeguards.
A 19 year old man from Brazil, who was visiting family in Croydon was discovered in the water by a group of kite surfers . Charlotte Wilkins reports.
More than 30 schoolchildren have been rescued by helicopter and lifeboats from a Kent beach after becoming trapped by the rising tide.
The hiking party - which included two adults - were plucked to safety after straying from a coastal path between Dover Harbour and St Margaret's Bay.
The youngsters used mobile phones as distress beacons. Two hours later they would have been swimming for their lives.
In her report Sarah Saunders spoke to Matt Ivatt of the Dover coastguard, Billy Hollis of the Dover RNLI and resident Jean Smith. Video footage and still provided by @kernowsailing and Stuart Brock Photography.
Littlehampton RNLI is to take delivery of a new lifeboat in May.
The Atlantic 85 is a RIB - a rigid hulled boat, powered by twin 115hp outboard engines, is capable of speeds of more than 35 knots/40mph.
She carries a crew of four and has a higher level of electronic navigational and communication equipment than the boat she replaces.
The new radar system allows the volunteer crew to operate more effectively in poor visibility. Like her predecessor, the current Atlantic 75 lifeboat Blue Peter 1, she will be self-righting.
Lifeboat crews have rescued a dog found swimming a mile out to sea off Hastings in Sussex. Storm the German Shepherd went missing four days ago, but was spotted this morning jumping into the water to chase a seagull.
The search operation was being carried out by the charity Dog Lost.
The RNLI say Storm was "on his last legs" when they reached him. But I'm glad to say he's now recovering well at the vets.
Plans for a modern lifeboat station in Margate are dividing the community.
The RNLI want to build on the beach, near the new Turner Contemporary gallery, to make launches quicker and safer. But some people say the building is ugly and will cut the town's famous beach in two.
Last year Margate's two lifeboats were called out 40 times and rescued 45 people. But the current location of the station makes it sometimes difficult to launch. Sarah Saunders spoke to the RNLI and local residents and businesses.
A Brighton volunteer lifeboat crew is striping off for a charity calendar.Read the full story ›
Three eighteen year olds from Dorset have finished a challenge to cycle 1,500 miles for charity.
Hugo Bromell, Tom James and Rory McMillian are former students from Sherborne School. They raised more than £2,000 for the RNLI. The challenge took them from Dorset up to Scotland. It took the trio 31 days to complete the feat.
"I decided to take part in the cycle challenge after a lecture from someone at school who told us he has cycled around the world, which I thought sounded very interesting. The three of us wanted to take part in the challenge to raise money for a charity, and because the school had been supporting the RNLI for the past few years it immediately came to mind."
A man has died trying to rescue a child from the sea in Dorset. It happened just hours after a major warning - to be aware of dangerous currents and rip tides.
The tragedy took place off West Bexington Beach in West Dorset. The man managed to save the child but then got into difficulty himself. He died shortly after being airlifted to hospital.
The RNLI has warned even strong swimmers should beware - and says this summer has been particularly busy for rescues.
From Bournemouth, Martin Dowse reports.