The Freedom Trail is a four day walk over the central Pyrenees to commemorate the World War II escape routes taken by allied servicemen and women and all those who helped them.
More than 40 miles from France to Spain, with a total climb of fifteen thousand feet up and nearly twelve thousand down, it was the most-used and toughest route to freedom.
Many Jews and others escaping forced labour also took this trek over the mountains.
Earlier this year Edward Stourton joined the walk to tell the remarkable stories of bravery, endurance and remembrance.
Edward Stourton walks the World War II Freedom Trail.
During World War II tens of thousands of people escaped Nazi occupied Europe by taking a hazardous and often gruelling trek over the Pyrenees Mountains from France to Spain.
Edward Stourton is following in their footsteps along the Freedom Trail.
It's day three, the halfway point of his walk, but the worst is yet to come.
Day three, the halfway point of the walk, but the worst is yet to come.