Get ready for a ding-dong merrily on high with a festive Christmas Cannonball. Freddie Flintoff plays Father Christmas and his sack is soaking thanks to four of the most fearsome challenges ever seen on water.

24 brave boys and girls will be bouncing and sliding, skimming and skidding faster than any sledge. Freddie Little Helper's, Frankie Bridge, Radzi Chinyanganya, Ryan Hand and Maya Jama will be there to sort out the naughty from the nice as we find out who can ditch the tree and put their presents round the Cannonball Cup.