Penguin Challenge!

My lovely next door neighbour is one of the Sloanehill Mermaids,  and she has signed up to do the Penguin Challenge this winter.  My understanding is that this means going for a sea swim once a week from the beginning of November to the end of January. There are different levels, in  the Penguin you can wear a wetsuit,  in the Polar Bear it's just a normal swimsuit.  You get a hat when you register,  and today her hat arrived!