Original sentence: As a child, Hunt had, from the age of ten, spent much holiday time in the Alps, learning some of the mountaineering skills he would later hone while taking part in several expeditions in the Himalayas while serving in India
Edited sentence: As a child, Hunt had, from the young age of ten, spent much holiday time in the Alps, learning some of the mountaineering skills he would later hone while taking part in several expeditions in the Himalayas while serving in India