Ride a mule through the mile-deep Grand Canyon, Arizona, U.S

The Grand Canyon runs through the middle of Arizona’s aptly named Grand Canyon National Park. The massive ravine is about 10 miles across, and from South Rim Village to the North Rim Village, it’s 215 miles. Sure, you could drive, but why not venture into the canyon with the help of a trusty mule? As long as you are at least 9 years old, stand over 4 feet 9 inches tall, weigh less than 200 pounds and can understand instructions given in English, you qualify for a South Rim mule ride. Just be warned, reservations are available 15 months in advance — and they fill up fast. You can also sign up for a North Rim mule ride, but note that this option doesn’t take you down to the Colorado River.