Bug bites, blisters and BO: How two men walked all 750 miles of the Grand Canyon

Pete McBride was in a bad way. Swallowing hard and unable to speak, he was fading in the 112°F heat of the Grand Canyon and his walking partner Kevin Fedarko was worried. But when McBride removed his shirt, Fedarko was taken aback, as he writes in “A Walk in the Park: The True Story of...