Question: How close can flights get to the Grand Canyon?
About the article "Grand Canyon", section "Activities".

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Grand Canyon may refer to:  The Grand Canyon of the Colorado River, United States (the best-known "Grand Canyon") *Grand Canyon National Park, surrounding the canyon in Arizona *Grand Canyon Village, Arizona, a community within the national park Grand Canyon may also refer to: 
Aside from casual sightseeing from the South Rim (averaging 7,000 feet [2,100 m] above sea level), rafting, hiking, running and helicopter tours are especially popular.
The Grand Canyon Ultra Marathon is a race over 24 hours.
The floor of the valley is accessible by foot, muleback, or by boat or raft from upriver.
Hiking down to the river and back up to the rim in one day is discouraged by park officials because of the distance, steep and rocky trails, change in elevation, and danger of heat exhaustion from the much higher temperatures at the bottom.
Rescues are required annually of unsuccessful rim-to-river-to-rim travelers.
Nevertheless, hundreds of fit and experienced hikers complete the trip every year.
Camping on the North and South Rims is generally restricted to established campgrounds and reservations are highly recommended, especially at the busier South Rim.
There is at large camping available along many parts of the North Rim managed by Kaibab National Forest.
North Rim campsites are only open seasonally due to road closures from weather and winter snowpack.
All overnight camping below the rim requires a backcountry permit from the Backcountry Office (BCO).
Each year Grand Canyon National Park receives approximately 30,000 requests for backcountry permits.
The park issues 13,000 permits, and close to 40,000 people camp overnight.
The earliest a permit application is accepted is the first of the month, four months before the proposed start month.
Tourists wishing for a more vertical perspective can board helicopters and small airplanes in Las Vegas, Phoenix and Grand Canyon National Park Airport (seven miles from the South Rim) for canyon flyovers.
Scenic flights are no longer allowed to fly within 1500 feet of the rim within the national park because of a late 1990s crash.
The last aerial video footage from below the rim was filmed in 1984.
However, some helicopter flights land on the Havasupai and Hualapai Indian Reservations within Grand Canyon (outside of the park boundaries).
Recently, the Hualapai Tribe opened the glass-bottomed Grand Canyon Skywalk on their property, Grand Canyon West.
The Skywalk has seen mixed reviews since the site is only accessible by driving down a dirt road, costs a minimum of $85 in total for reservation fees, a tour package and admission to the Skywalk itself and the fact that cameras or other personal equipment are not permitted on the Skywalk at any time due to the hazard of damaging the glass if dropped.
The Skywalk is about by road from Grand Canyon Village at the South Rim.
Air Grand Canyon is an airline headquartered on the grounds of Grand Canyon National Park Airport in the Tusayan census-designated place in unincorporated Coconino County, Arizona, United States.
Air Grand Canyon an air tour company flying tourists on sight-seeing flights around the Grand Canyon from its base at the Grand Canyon National Park Airport.
The airline is run by a single family and was established in 1979. 
A variety of activities at the South Rim cater to park visitors.
The South Rim Drive () is a driving tour split into two segments.
The western drive to Hermit's Point is with several overlooks along the way, including Mohave Point, Hopi Point, and the Powell Memorial.
From March to December, access to Hermit's Rest is restricted to the free shuttle provided by the Park Service.
The eastern portion to Desert View is , and is open to private vehicles year round.
Walking tours include the Rim Trail, which runs west from the Pipe Creek viewpoint for about of paved road, followed by unpaved to Hermit's Rest.
Hikes can begin almost anywhere along this trail, and a shuttle can return hikers to their point of origin.
Mather Point, the first view most people reach when entering from the South Entrance, is a popular place to begin.
Private canyon flyovers are provided by helicopters and small airplanes out of Las Vegas, Phoenix, and the Grand Canyon National Park Airport.
Due to a crash in the 1990s, scenic flights are no longer allowed to fly within of the rim within the Grand Canyon National Park.
Several companies offer flights that land in the Grand Canyon in Hualapai Indian territory. 
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