danube in djerdap national park, serbia

ancient attraction autumn background balkan beauty border canyon carpathian cliff climbing cloud colors danube deep depth destination djerdap dusk east ecology environment europe flow forest gate geology glow golden gorge height high hiking hill iron kazan landmark landscape majestic miroc mount mountain national natural nature panorama panoramic park peak ravines river riverbank rock rocky romania scenery scenic serbia sky stone strbac summer sunny sunset tourism travel trees valley viewpoint water wild