Ключевые слова: active, activity, adventure, asphalt, bicycle, bike, biking, boy, child, childhood, cycle, cyclist, drive, ecological, exercise, forest, fun, happy, healthy, helmet, kid, learn, leisure, lifestyle, little, nature, outdoor, outside, park, pedal, people, person, play, recreation, ride, riding, road, safety, single, sport, spring, street, study, summer, tour, track, transport, transportation, wheel, young,