A man from Gloucester who cycled half way round the world for charity is now attempting to break the world record for continuous pedalling.
Jamie McDonald cycled 14,000 miles from Bangkok to Gloucester, starting out in January 2012 and arriving back last month.
This morning (Saturday) he began an 11 day marathon pedalling on a static exercise bike in Gloucester docks.
If he pedals continuously for 264 hours he will enter a new Guinness World Record.
Jamie has already raised £10,000 for the Pied Piper Appeal children's charity based at Gloucestershire Royal Hospital and hopes to push this to £20,000.