Swimmers brace the cold to dive into the lido revival

A bracing dip in the great outdoors might not be for everyone, but the recent opening of a freshwater bathing pond in King's Cross is the latest step in an open air swimming revival.

A decade ago the Outdoor Swimming Society only had 300 members. Now it boasts almost 23,000. So why are we ditching the indoor pool and embracing the cold once more?

Tim Muffett reports.