Fresh from the screening of his five episode appearance in the BBC2 series Special Forces: Ultimate Hell Week, Paul Parrish is getting ready for his next challenge.

He is joining a team from the hit show who take on the Tough Sh!t Challenge, WaterAid’s toilet-themed obstacle race in Deepcut, Surrey, next Saturday, October 24.

With two other contestants from Special Forces, Alex Lacey and Andy Gatenby, Paul, 50, who lives in Wheathampstead, will be competing in the 10km course with more than 20-plus toilet-themed obstacles.

As well as raising money for WaterAid, the event is aimed at spreading awareness of the plight of billions of people across the world who do not have access to a decent toilet.

Alex Lacey, who will be leading the Special Forces participants, said: “The Ultimate Hell Week team arereally excited tobe taking part in Tough Sh!t. I’ve done a lot of mud runs but never before have I slid through a porta loo or been hit by some swinging bog brushes.”

Paul, who was the oldest contestant to last in the TV series, is a triathlete who last year became only the 20th person ever to complete the gruelling Arch to Arc Challenge which involved an 87-mile run from Marble Arch to Dover, a solo swim on the English Channel and finally, a 180-mile cyle rise to the Arc de Triomphe in Paris.