A London Marathon participant dressed in a snail costume is still going around the route - two weeks after the event took place.
Lloyd Scott, 49, from Watford, Hertfordshire, is averaging one mile per day dressed as Magic Roundabout character Brian the Snail.
The former professional footballer, began the 26-mile course on 17 April, and is about halfway around the route.
He is hoping to raise at least £200,000 for children's charity Action for Kids.
The former Blackpool, Watford and Leyton Orient player who fought off leukaemia more than 20 years ago, said the 26-day attempt had been tough on his knees.
He said he has also had to deal with muscle pain and cramp due to hauling himself face-down around the route in the 9ft costume for up to eight hours every day.
He added he was finding it nearly impossible to eat and drink en route because of lying on his stomach on a sled inside the costume.
"I'm very touched by the amazing support I've been getting from the people of London," he said.
"It's a much harder challenge than I imagined but the thought of the children is helping spur me on, as is reaching my old stomping ground in the East End, having grown up in Stepney."
Mr Scott, who raised more than £5m for charity by running marathons, took five days to complete the 2002 London Marathon in a deep sea diving suit.
He also cycled across Australia on a penny-farthing, and was awarded an MBE in 2005 for his charity work.
Action for Kids supports children and young people with physical and learning disabilities and their families.