Floodplain Landscape, Danube Wetlands, Donau Auen National Park, Lower Austria - aerial drone shot

floodplain landscape danube wetlands donau auen national park lower austria aerial sunset river forest danubeauen nature water green tree wood austria donauauen surroundings conservation natural environment waterfront outdoor park spring sky drone beautiful scenic season reflection view pond freshwater ecology wilderness trees summer travel tourism floodplains foliage rivers nature protection natural resources ecosystem danube river