Ключевые слова: america, aqua, background, beautiful, cascade, cataract, creek, crystal, drive, drop, effect, environment, fall, flowing, fluid, foliage, forest, fresh, jungle, landscape, motion, national park, natural, nature, outdoor, paradise, park, plant, preserve, purity, river, rock, scenery, scenic, spark, spring, stream, swift, swim, torrent, tree, tropical, usa, vacation, vibrant, water, waterfall, wet, wild, wonderful,