As Christmas Day traditions go, an outdoor swim is not for the faint-hearted.

However, the chilly winter temperatures across the UK did not stop hundreds of people taking the plunge at lakes, ponds and in the sea.

In London, the Serpentine Swimming Club held its Peter Pan Cup race, which first began in 1864.

Elsewhere, hardy swimmers were sponsored for charity, including at Boscombe Pier in Bournemouth, Dorset, where the White Christmas Dip event raised money for Macmillan Caring Locally.