Pets are allowed in Grand Canyon National Park; however, they must be on a leash at all times. Pets are not allowed below the rim or on the park buses, with the exception of service animals. There's a kennel, near the Maswik Lodge, which houses cats and dogs. It's open daily from 7:30 AM to 5 PM. Reservations are highly recommended.
Grand Canyon Kennel (928/638-0534).