Ключевые слова: america, attraction, beautiful, cascade, coast, drop, environment, fall, famous, flow, fresh, freshness, greate, green, landscape, large, mist, movement, natural, nature, niagara, paradise, park, rainbow, relaxing, river, rock, scenic, shore, smooth, spray, state, steep, stone, stream, summer, time, tourism, travel, trees, usa, vacation, water, waterfall, wet, wonder, world,