Ключевые слова: activity, adventure, air, background, beautiful, beauty, blue, cloud, clouds, color, europe, extreme, flower, forest, fun, germany, grass, green, harz, health, highlands, lake, landscape, meadow, morning, mount, mountain, mountain range, mountains, national park, nationalpark, nature, outdoor, plain, recreation, rock, sky, summer, sun, sunshine, train, travel, tree, vacation, walk, water, white,