Generally required for entry to the US.
The most accessible area of the park is the South Rim, an easy 60-mile drive north of I-40 at Williams. Several regularly scheduled shuttles service the South Rim from Sedona, Williams, Flagstaff and airports in Phoenix and Las Vegas, and an historic train runs daily between Williams and Grand Canyon Village.
Getting to the North Rim is more of a challenge. A shuttle (mid-May to mid-November) runs from rim to rim, but otherwise the only way to reach the North Rim is by car, foot or bicycle.
Flights, cars and tours can be booked online at www.lonelyplanet.com/bookings.
Car There is parking at most sights on both rims, but during high season on the South Rim traffic is frustrating and parking can be difficult. Hermit Rd is closed to private vehicles from March 1 to November 30.
Shuttle Convenient shuttles service all South Rim sights except those on Desert View Dr; on the North Rim, the only shuttle service is an early morning hikers' shuttle from the lodge to the North Kaibab trailhead.
Foot, Mule or Boat The only way to get around below the rim.