Five years ago David Walliams swam the English Channel for Sport Relief. Now he is going to try swimming to London along the Thames for the same charity.
He begins on Monday 5 September at Lechlade and plans to reach Westminster Bridge on the following Monday.
But he warns others not to try and copy him.
“If there’s a lot of rainfall there’ll be a lot of sewage so I’ve had to have loads of jabs,” says forty year old David Walliams.
He adds: “It’s really not a safe environment to swim in – people really mustn’t try this, I have an incredible team of experts to help keep me safe.”
His last night will be spent in Putney with his arrival below Big Ben planned for 9am on Monday.
David is being filmed for a Walliams vs The Thames documentary which will be broadcast in the build-up to the Sport Relief weekend in March.
Sportrelief has a Walliams webpage.