Harpenden’s David Clarke is calling on people to put themselves to the ultimate fitness challenge and sign up for Blind Veterans UK’s 100k Walk.

David, Britain’s most capped blind footballer, will be taking part in the 24-hour London to Brighton 100k walk to raise money for Blind Veterans UK, the national charity for vision impaired ex-service men and women.

The Bewdley Close resident, who lit the Paralympic cauldron two years ago at the London 2012 Paralympics opening ceremony, said he is proud to be taking part in the challenge, which takes place from Saturday, June 21 to Sunday, June 22.

The father-of-two said: "I’ll be joining several of the visually impaired ex-service men and women supported by Blind Veterans UK on the walk and I am looking forward to raising money for this great charity alongside them.

"Like those supported by Blind Veterans UK, I understand the impact that a visual impairment can have on a person's life and the drive to make sure that blindness doesn’t stop you from aspiring to achieve great things and succeeding at what you love."

The event is Blind Veterans UK’s biggest annual fundraiser and takes walkers from a starting point in south London, along the banks of the Thames, through countryside paths in Surrey, Sussex and the North and South Downs to the charity’s centre in Ovingdean, Brighton.

To sign up visit http://walk100.org.uk/sign-up/.