Andy Cave is one of the most renowned mountaineers in the world today. He draws on the exacting skills his passion demands to deliver inspirational motivational lectures. In 1997, Andy reached the summit of the notoriously difficult Himalayan mountain, Changabang, by one of the most challenging routes ever recorded. What makes his story even more incredible is the realisation that this ascent began 15 years earlier, 3,000 feet underground.