such an incredible example to people generally, and to women. i'm so glad to be able to talk about my grandmother with my daughter, for example, because itjust shows you, you can do anything. this film is honouring a pioneer. mercedes gleitze had done it on her own. a secretary who had started swimming in her spare time, and used herfame to raise money to provide housing for the homeless. and now, an inspiration for today's hardy souls, enjoying the pleasures — and challenges — of a rapidly growing way of embracing the therapeutic joys of a cold, wet winter. what a way to start the morning. it's fantastic. the most perfect, perfect sunrise. glorious sunshine. a little bit chilly. david sillito, bbc news, brighton. brighton looks really quite toasty.