Liam Cunningham and PJ Gallagher on life lessons learned deep in the high-altitude dirt tracks of the Himalayas

From a quick pitstop at ‘Yak Donalds’ to reaching a height of more than 4,000 metres on bikes, Liam Cunningham, PJ Gallagher and Ray Goggins ate, prayed and biked their way along some of the most difficult roads in the world