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 ...

Make sure you have a map in hand (cell service is spotty ... For more information about hiking trails, visit the National Park Service website.

Carry half a liter of water for each hour you plan to hike. -- Bring Sun protection. -- Bring a navigation tool, including a paper map, because many areas of the park have little or no reception.