koblenz, germany - 12 07 2023: old town mosel shore with ships in winter

river vehicle waterway sea harbor water boat dock coast bay skyline channel city watercraft marina port reflection bridge koblenz germany 2023: lützel bike riding pedestrian mosel estuary rhine old town located rivers remaining medieval buildings rebuild historic copies winter regular floods gloomy light deep valleys dark hills shore ships koblenz unesco heritage rhine valley middle valley mittelrheintal koblenz koblenz rhein rhein rhine river river valley beautiful europe tourism travel holiday travel destination unesco weltkulturerbe mittelrheintal vacation confluentes coblenz