Ключевые слова: autumn, background, beautiful, beauty, blue, cascade, cavity, close, colorful, environment, exotic, fall, flow, flowing, forest, fresh, green, hazard, jeopardy, lake, landscape, moist, motion, mountain, natural, nature, nobody, outdoor, park, pothole, resources, risk, river, river flow, rock, scenery, scenic, splash, stone, stream, summer, sump, tranquility, travel, tree, water, watercourse, waterfall, wet, woods,