Kev Brady - Swimming the length of the River Severn - Britains longest river!

This challenge is not for the faint hearted. I can swim reasonably well but my hat is certainly taken off to Kev Brady who decided to swim the length of Britains longest river, the River Severn in Gloucestershire for charity. This extraordinary swim will take Kev approximately 220 miles and many weeks to finish in freeing cold waters!