Ban Pak Ou, Jose Pereyra, Karst, Lao People's Democratic Republic, Laos, Limestone, Nam Ou River, acrophobia, adrenaline, afraid, ascend, ascent, boat, canoe, challenge, cliff, climb, climbing, confidence, corporate ladder, courage, crag, danger, extreme sports, fear, fright, frightened, harness, leadership, limits, men, mountain, panic, patience, perseverance, problem solving, responsibility, risk, rock climbing, rope, scary