Ключевые слова: activity, adventure, air, artificial, blue, challenge, color, copy, equipment, extreme, flying, freedom, fun, high, hobbies, leisure, light, man, motorized, move, operated, orange, parachute, parachuting, people, person, recreational, scenics, sign, silhouette, sky, space, speed, sport, sports, sunset, twilight, up, wind, winter,