Ключевые слова: cascade, concept, countryside, creek, current, ecology, ecosystem, environment, europe, fall, flowing, foliage, forest, green, jump, landscape, lush, meadow, mountain, national, naturally, nobody, outdoor, park, plant, rapid, reserve, reservoir, rill, river, river bed, rural, scenic, season, stone, stream, sunlight, tourism, travel, tree, valley, vegetation, water, water course, waterfall, waterway, weather, wild, wilderness, woods,