Ключевые слова: 10k, 5k, active, aerobic, athletes, athletics, boys, cardio, conditioning, copy space, cross country, dirt, endurance, exercise, fall, fallen autumn, fast, fitness, four, group, healthy, high school, horizontal, kids, leaves, lifestyle, motion, outdoors, park, real people, run, runners, running, shorts, speed, sports, sporty, team, teammates, teenagers, together, track, trail, training, workout, young,