I believe that if you're going to ask people to donate money to a charity of your choosing it should cost you.  It should be physically hard, or embarrassing, or stressful.  It should be a challenge.

Previously I've walked on fire, swum across England's longest lake in my pants and had my entire body waxed live on the internet

This year I'm doing something different.  Rather than a one off event I'm going to do the same thing, every month, for an entire year. 

Every month, despite the water temperature, I'm going to swim in the North Sea, without a wetsuit, probably at Whitley Bay.

This isn't just running into the sea and out again but an actual swim,
with my head under the water. It might only last a few minutes, but
it'll be in some of the coldest water in the UK

So what does sponsoring me get you?  every month when I swim I'll post an update, to prove I did it.  Hopefully the sight of me cold and wet on a beach (in February!) will cheer you up and make your day.

St Mary's bring love and dignity to people in their last days, and comfort and support to their families.  It costs a small fortune to keep St Mary's running and every minute in that freezing water will be worth it.