Dr Andrew Murray ran 2659 miles in 78 days from John O groats to the Sahara Desert.
Andrew completed his challenge 7 days ahead of time, as a result of averaging a staggering 34 miles a day, for 78 consecutive days (thats over 100 marathons!).
Here he explains his adventure using just 20 slides which each scrolled on automatically after 20 seconds: a 400 second adventure.
He was speaking at the Night of Adventure event in Edinburgh to raise funds and awareness for Hope and Homes for Children (hopeandhomes.org).