With walls stretching to heights of 30 feet and more than 15,000 square feet of climbing surface, Phoenix Rock Gym is an impressive sight to behold. Seasoned instructors stand at the foot of ropes and bouldering walls, guiding clients of all ages who scamper up and down faces, cracks, arêtes, and chimneys within the comfort of a climate-controlled gym, safe from mountain goats that have developed a taste for human gym shorts. The gym's assortment of more than 50 courses accommodates all skill levels, from first-time climbers to the seasoned scalers of the Phoenix New Times. Staff members switch up holds and paint colors regularly to keep climbs from getting stale.