Forested Floodplains On The Banks Of Danube River In Donau-Auen National Park, Austria At Dawn

forest floodplain riverbank danube river donauauen park austria dawn aerial biodiversity conservation danubeauen danubeauen national park donau national park vegetation danube river daybreak daylight daytime lower austria tree wild donau auen sunrise danube floodplains environment donauauen national park early plain wien forested morning flood plain natural meandering season riverine flood scenery tourism day nature water landscape europe travel destination