Ключевые слова: adventure, aerial, beautiful, blue, breathtaking, canyon, cliff, color, danube, daytime, eco, ecological, flow, forest, fresh, gorge, gorges, green, hiking, landmark, landscape, mountain, mountains, narrow, natural, nature, outdoor, panorama, park, peak, river, rock, rocks, scenery, scenic, serbia, serbian, sky, spring, stream, summer, summertime, tourism, travel, tree, trees, view, vista, water, wild,