Ключевые слова: activity, boy, briefing, caucasian, child, childhood, class, coach, cute, enjoyment, exercising, female, float, fun, girl, goggles, group, happiness, healthy lifestyle, high angle, horizontal, indoor, instructor, joy, kid, learning, lesson, male, person, playful, pool, portrait, positive, practice, recreation, school, smiling, sport, swimmer, swimming pool, swimwear, teacher, team, together, top view, trip, twenties, water, wet, woman,