Ключевые слова: abstract, active, background, blue, bright, clean, color, competition, cool, deep, empty, exercise, fitness, healthy, horizontal, image, lane, lap, leisure, lifestyle, lines, nobody, pattern, pool, race, recreation, reflection, refreshing, spa, sport, surface, swim, swimming, swimming pool swimming pool underwater, swimming pool under water, tile, training, transparent, underwater, underwater swimming pool, water, wave, wet,