Journey to the start line will begin with 235-mile treadmill run in Barnstaple town centre.
Marathon runners are taking their training to the streets of Barnstaple to raise money for charity.
A group of 27 long distance runners – many of them taking part in this year’s Virgin Money London Marathon on April 24 – will be jumping on a treadmill in Barnstaple High Street on Friday, March 18.
They will be taking it in turns to run 235 miles – the distance from Barnstaple to the London Marathon start line in Greenwich Park.
The 235 Treadmill Challenge is the brainchild of North Devon Road Runners Frank Biederman and Zoe Smith.
It already has the backing of several businesses in the town, including Banburys and Lilicos, which will take it in turns to host treadmills outside their businesses during the 36-hour challenge.
Mr Biederman said runners would run in shifts to complete either 10km or half-marathons.
“Hopefully, people will come down on the day and support the runners,” said Mr Biederman.
“The event will start with the team running a mile together around the town centre at 7.30am on the Friday.
“The 235th mile will also be run by all the team around the town – hopefully between 4pm and 6pm on the Saturday,” added Mr Biederman.
Money is being raised for North Devon Hospice and other charities, including Over & Above, St John Ambulance and Meningitis Now.