Ключевые слова: active, adventure, athletic, bicycles, biking, boys, cheerful, childhood, children, energy, enjoyment, environment, equipment, excitement, exploration, friends, friendship, fun, groups, happiness, healthy, helmets, joy, joyride, laughter, learning, leisure, lifestyle, movement, nature, outdoor, park, play, playground, recreation, riding, scenery, smiling, summer, sunny, transport, youth,