danube river at iron gate gorge

above aerial ancient background balkan blue border canyon carpathian cazane cazanele ciucaru cloud clouds cloudscape cloudy danube day daytime depth destination djerdap emerald europe famous flow flowing foggy gate gates geology george gorge gorges green high hill international iron kazan landmark landscape mare mari mountain national natural nature outdoor outdoors park peak place ravine ravines river riverbank riverside road rock rocky romania romanian scenery scenic serbia serbian serbianromanian shore sky square stone storm stormy summer sunny surface tourism transportation travel trees up valley view viewpoint water white wide