How to hike to the bottom of Grand Canyon and back in 1 day

We hike from the rim of the Grand Canyon down to the Colorado River and back in one day, starting early to avoid the worst heat and crowds. We refill our water at Indian Gardens, then continue through Devil’s Corkscrew to the canyon bottom, where we turn around for the demanding climb back up. We make our way through the sun and heat toward the rim, planning to finish with a shower and a beer.