"Do you see those mountains way off in the distance? We're hiking much, much farther than those mountains," says Ron Burke after Travis, his son, started asking whether or not they could see Mount Whitney, which marks the end of the John Muir Trail. The hikers had only been out for a few days when Travis asked this question, and not until this moment did it truly sink in for him just how far they were traveling. Photo by Travis Burke 13 / 29