Norton and Adlington finish endurance swim

Rebecca Adlington and James Norton took to the water at Joss Bay

Olympic gold medallist Rebecca Adlington and actor James Norton have taken part in a sea swimming endurance challenge in Kent.

Both were participants in a 10-hour relay at Joss Bay in Broadstairs on Friday in aid of the Blue Marine Foundation conservation charity.

Adlington, who won her medals swimming freestyle, said she "always felt a deep connection to water" so supporting coastal restoration "just felt like a natural fit".

The event sponsor said it would donate £150 to for every kilometre participants swam at the event to the charity.

According to organisers, 36 swimmers swam a total of 29.4km.

Adlington added: "I hope people see this event as more than just a challenge, it's a call to action."

The UK has seen a 92% reduction in seagrass meadows and a 95% decline in native oyster reefs over the last century, according to a report published by Blue Marine Foundation in 2024.

Happy Valley actor Norton said his family goes by the mantra "you'll never regret a swim" but admitted he had never been involved with this level of endurance swimming.

"Like everyone, I'm in awe of the ocean. It's wild, powerful, and under threat," he said.

"Taking a stand is about protecting biodiversity and ensuring future generations can experience the magic of healthy seas."