Mark swam - yes really!

Whilst he is our most seasoned Arctic explorer, having trained there during his time in the RAF, Mark has recently lost a great deal of body fat and also had a serious back injury some while ago and the combination of the two mean that getting in to the sea this morning wasn't easy for him - but he made it! He was allowed a wet suit today. Then he wouldn't get out, even after he started to look a bit blue... boys huh? Here he is waiting for me to take 'proof photos':

 And here he is getting out at last. It was pretty grey and miserable this morning, but that just means he's started at the best time - it can only get easier...