summer landscape from above with the river Gauja, which winds through mixed tree forests, tree, outdoor, forest, river, landscape, latvia, sky, travel, gauja, green, nature, beautiful, reflection, water, environment, natural, gauja national park, aerial, view, above, wood, scene, europe, park, summer, national, leaf, foliage, rural, day, national park, countryside, shadow, scenic, thick, season, sinuous, meandered, panoramic, colorful, over, riverbank, pine, woodland, clouds, high angle, weather, top