Ключевые слова: activity, adventure, air, blue, bulgaria, clear, cliffs, color, excitement, extreme, flying, freedom, fun, glider, gliding, high, hobbies, landscape, leisure, lifestyle, male, mountain, outdoors, para gliders, para sailing, parachute, paragliding, people, person, recreation, risk, scenic, sky, space, speed, sport, tandem, transportation, travel, two, wind, wing,