Grand Canyon National Park, AZ

While many head down into Grand Canyon on its steep, rocky trails, some other options offer up pretty unbelievable views. The South Rim has wheelchair-accessible, barrier-free overlooks; wheelchairs can be checked out at the visitor centers, where you can also pick up a complimentary accessibility guide; and free ramp-equipped shuttles operate throughout the park. A Scenic Drive Accessibility Permit, available at the entrance gates and visitor centers, also grants entry to some areas that are closed to regular traffic.

Don’t forget about tours: mule rides can accommodate special needs given advance notice, airplane and helicopter tours—like those through Papillon—fly over the canyon, and even multiday river trips are available. Various companies, like Arizona Raft Adventures, have ramps they can add to motorized boats, wheelchair tracks made for sandy areas, and special hiking and toilet systems.