cables chairs music note notes orchestra pit play stand cable chairs cableway chairlift empty height high movement not in use personal transport perspectives scenic seats tourist transport tourists transport unused views cable-chairs danger in-use ocean panoramic passing personal-transport safety scene secure tourist-transport trees used water in use alps cable chair hawser lift metal mountain pillar pylon strength strong support carry landscape return seat travel vacant valley view birds-eye-view foliage greenery looking-down machinery mechanisms safeguards safety-rails shrubbery terminal terminus turn-around