Sport Relief 2014 is just around the corner, so the programme launches Team Blue Peter! This week Radzi takes on his challenge - braving freezing temperatures and cold winds as he trains to swim across the largest natural lake in England, Lake Windermere. In the studio, the team are joined by Junior Bake Off presenter Aaron Craze and current champion Harry Duffy, as they judge a pancake bake-off ahead of Shrove Tuesday. Frying pans at the ready!
