Sean Conway talks to Phoebe Smith about the third and final leg in the world’s first length of Britain Triathlon. Having already cycled and swum the length of Britain, Sean completed his trilogy by running all the way from John O’Groats to Land’s End entirely unsupported.

The adventure was turned into a successful Documentary on Discovery Channel. Sean ran nearly a marathon every day carrying just a small rucksack and had to change trainers every 10 days because they wore out.