Build your aerobic fitness over winter

Cardio training in winter could see you return to open water stronger, more efficient and better conditioned for swimming, says fitness instructor Vivienne Rickman

It’s that time of year when outdoor swimming sessions get shorter, the dark evenings are closing in fast, and the dropping temperatures mean many of us head to the indoor pool for our training. But not everyone! If you’re not a fan of the repetitiveness of laps (or the argy-bargy of a bit of lane rage), the gym could be your sanctuary this winter.