In the late 1990s, Andrew Terrill set off from the southern tip of Italy to walk to the top of mainland Europe. Part 2 picks up with 4,500 miles still to go.
With only one month to recover from serious injury, extreme skiers Sébastien de Sainte Marie and Adelin Favre make a second descent of a steep line down the north face
They climbed the equivalent of Everest four times, battled headwinds and a heat wave and hiked and flew 2,000km to cross the Alps. A lowdown on Red Bull X-Alps
