Almost 140 years ago, three men crossed from the Hebridean island of Lewis to the north west coast of Scotland. Their aim was audacious: to be the first people to stand on the top of the Great Stack of Handa, an isolated pillar of rock. Failure would have meant certain death. Success, won against all the odds, gave birth to a new sport.

Starting on Aberdeen's beach and finishing in the wild lands of Knoydart in the west, Cameron McNeish travels through Scotland's most spectacular glens and mountains following a new route that proves that Scotland has some of the most outstanding landscapes in the world.