Experienced hikers in excellent physical condition may want to hike down into the canyon. Although the canyon has no maintained or marked trails, rangers can help you plot out several recommended routes. Free permits are required. A limited number of campsites are available for backpackers, but bring your camp stove -- wood fires are prohibited.
The most popular inner canyon hike is the strenuous Gunnison Route, which branches off the South Rim's Oak Flat Loop Trail and meanders down the side of the canyon to the river. Eighty feet of chain help keep you from falling on a stretch about a third of the way down. This hike has a vertical drop of 1,800 feet and usually takes a bit under 4 hours.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.