At Crux Rock Climbing Gym, more than 9,000 square feet of climbing walls challenge guests as they tackle roofs, overhangs, and bouldering caves. Roped climbers are secured with auto-locking belay devices called grigris, allowing them to safely explore Crux’s many routes knowing their ropes are in extra-good hands. Climbs range from simple, juggy routes with easy-to-grasp holds to complex ascents that may require careful footwork or the flying leap of a dyno. Following a workout on Crux’s towering walls or in one of its three bouldering areas, visitors can dig into Hawaiian, Polynesian, and Asian cuisine at Ron's Island Grill, the gym's onsite restaurant. The gym also hosts summer camps, parties, and nights for female climbers only.