Climbers flock to Joshua Tree from around the world to tackle the literally thousands of routes open to them. There are challenges for all ability levels, with more than 8,000 climbing routes, 2,000 boulder problems and hundreds of natural gaps to choose from. Because Joshua Tree has its own particular set of safety issues, from high temperatures to remote climbing spots, it pays to do your homework first. If you're unfamiliar with the park, you'll want to purchase a climbing guide and hiking map, which are available at park visitor centers and online.

Certified guides can also lead you on climbs and provide a great way to explore in safety. If you do hire a climbing guide, make sure that they are permitted to work in Joshua Tree National Park. Each guide is required to have rock guiding certifications through the Professional Climbing Guides Institute, the American Mountain Guides Association or similar organizations. They are also required to be certified in Wilderness First Aid and CPR and must carry insurance.