For those unfortunate enough to find themselves homeless at winter, finding shelter and staying dry are a constant battle.
Rough sleeping in these conditions can cause trench foot, pneumonia and tuberculosis. I am making a splash and raising some cash to help homeless people battle these unforgiving conditions.
On #GivingTuesday (Tuesday 3 December) I pledge to swim for 50 minutes to mark St Mungos 50th anniversary year.