Shuttle buses are not wheelchair accessible. Disabled visitors may obtain a permit to drive cars on West Rim Drive. The South Rim is located in an exposed high-desert region, renowned for temperature extremes. Weather can change abruptly any time of year. Summers are hot and dry but prone to spectacular thunderstorms and sudden temperature drops.
Winters bring freezing temperatures and snowstorms.
Spring and fall tend to be pleasant and warm. At any time of year, wear a hat, sunscreen, sunglasses, sturdy footwear, thick socks, and layers of light protective clothing. Bring plenty of water and high-energy foods. Free copies are available at park entrance stations and visitor centers. Information on hikes, ranger-led programs, weather, bicycling, and indoor activities, plys orientation maps of the canyon are available.