Ben Ainslie on being the UK's first torchbearer
13 May 2012 Last updated at 10:56 BST
A few days ago, the athlete who will carry the torch on its first leg in Cornwall was named.
He is Ben Ainslie, three times Olympic Gold Medallist who is competing once again in the Finn Sailing Class.
Andrew Marr caught up with him in Falmouth where he has been training, and asked him just how much of an honour it was to be asked to begin the Olympic Torch relay.