aerial view of zavoj lake, national park stara planina, serbia

advanture aerial angle autumn background balkan beautiful blue camp campingsite canyon clear cloud clouds coastline crystalclear destination drone dronephotography dusk eastern environment environmental europe fall forest fromabove green high hike hill lagoon landscape meandering meanders mountain mountains national natural nscenic outdoor outdoors panorama panoramic park photo photography pirot planina poster relax river scenery scenic screensaver serbia serenity sightseeing sky stara summer sunset taken tourism tourist travel trekking vacation view visocica water wild wilderness zavoj zen