floodplain forest foliage germany green isar river leafs maple munich sunbeams sunburst trees above aerial aerial-photography agriculture angles arial below bird's-eye-view buildings cambodia cattle country-side crops cultivated cultivation distance distant expanse farming flat flooding floodplain flying from-above grassland height high houses landscape looking-down moving panoramic-views plantations plots rural scenery scenic shadows speed sunlight sunshine travel travelling vegetation water watercourses waterways