Ключевые слова: above, action, activity, adrenaline, adventure, athlete, background, balance, canyon, challenge, cliff, concentration, confidence, courage, danger, dangerous, energy, equilibrist, equilibrium, extreme, freedom, height, high, highline, highliner, highlining, landscape, line, male, man, mountain, nature, people, performance, person, recreation, rig, risk, rock, rope, sky, slack, slackline, sport, standing, tight, tightrope, top, walk, walker,