This 12-mile round-trip out-and-back starts at Bright Angel Trailhead, descends the Bright Angel Trail to Havasupai Gardens, then follows the Tonto Platform to Plateau Point. Allow 9–12 hours; the descent loses about 3,080 feet, and you climb that canyon wall back to the rim. The payoff is a rare, mid-canyon view over the Colorado River. The listed distance includes the rim approach and the roughly 3-mile round-trip spur from Havasupai Gardens. That shorter spur is a separate walk, but it is not the full South Rim hike. Go for the point if a long canyon day is part of the appeal; choose a rim viewpoint if you want the view without a full descent and climb.