If you're looking for a slightly easier trek, the 2.6-mile out-and-back Cholla Trail ... which comprises two barrier-free, half-mile loops. Mystery Castle is another must-see.
U.S. News Insider Tip: Since parking is hard to find beyond the visitor center's main parking lot, opt for one of the park's free shuttles and pack a bag with a water bottle, a hat, sunscreen and ...