On Sunday, hundreds of naked swimmers took to the cold waters at Rhossili beach in Wales in an effort to set a new record for the world's largest skinny dip.
Nearly 400 people shed their clothes for the swim, well above the existing record of 250.
Alison Powell, an online publishing editor who came up with the idea as a way of raising money for the Marie Curie Cancer Care charity and the National Trust, said it had gone "brilliantly". She said: "It was amazing. It's such a beautiful beach."
To break the record, the bathers had to wade into the water until it was up to their waists and stay there, shivering, for 10 minutes.