Best canyon parks to visit worldwide

Canyon parks are the ones you look into before you walk into. The Grand Canyon, Zion, Bryce and Canyonlands set the pattern: a rim road with viewpoints, a shuttle bus in season, and a few trails that drop below the rim for those with the legs and the water. Most visitors come on a day tour from Las Vegas, and the first thing to settle is which rim the tour actually goes to, since West, South and North are hours apart and quite different.