South Boston is the newest location opening in 2013 of Rock Spot Climbing?s multiple locations, where colorful footholds and route markers sprawl along artificial rocks create diverse climbing surfaces for every major discipline. Dozens of top-rope stations challenge climbers to scale the wall in safety, whether belayed by a human companion or hooked up to an auto-belay unit that reduces the risk of conversation. Meanwhile, others eschew ropes in order to tackle bouldering routes?low-altitude obstacles littered with arches, steep faces, and caves?and lead climbers set their own anchors as they scale the wall. The climbing courses vary for all skill levels, ranging from sheer faces with ample handholds to cliffs for expert climbers and lemmings. Cardio machines let athletes warm up or cool down between climbs, and instructors lead afterschool classes to teach kids the art of competitive climbing.