The festive tradition takes place every year in Portobello, Edinburgh, on Christmas morning.
Hardy swimmers, some wearing antlers and Santa hats, dashed into the sea to splash around despite air temperatures being 2C.
Even a dog joined in with the fun after chasing its owner into the water.
Here are pictures showing the bold festive activity some took part in on December 25!
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Pictures of swimmers braving the water at Portobello Beach on Christmas day pictures: JPI Media and SWNS Photo: JPI Media and SWNS
1. Wearing a Santa hat for a dip in the sea
Fraser Lindsay and Matt Newman brave the waters at Portobello Beach, Edinburgh for a festive dip in Santa hats on Christmas Day. Photo: SWNS
2. Hands in the air!
Anna McKay and Muireann O'Regan are among others to take part in the festive tradition of swimming off Edinburgh's coast on Christmas day. Photo: SWNS
3. A little cold
It appears from pictures taken at the event everyone who took part managed to go fully in, despite the outdoor temperature being about 2C. Photo: SWNS
4. Annual event
The festive tradition takes place every year in Portobello, Edinburgh, on Christmas morning. Photo: SWNS