Peter Pan Cup Swimming Race

WHAT: Just as you’re opening your Christmas stocking, a bunch of hardy souls will be diving into the icy waters of the Serpentine, preserving a tradition that dates back to 1864.

WHEN: December 25.

DO IT BECAUSE: Honestly, there’s no good reason why you’d want to take part, unless you’re a complete masochist. But getting along to watch should be good for a laugh, and a brisk morning stroll through Hyde Park will help you build up your thirst for a few flagons of mulled wine.

Serpentine Boating Lake, Serpentine Rd, Hyde Park, W2 2UH 
Tube: Knightsbridge