sandstone bridge in rocky landscape with mountain river.

river waterway bridge water reservoir stream rock geology wadi valley terrain cliff wall transport canal ruins trail panoramic views blue mountain stone near gadouras dam south island rhodes dodecanese greece sandstein brücke felsiger landschaft gebirgsfluss sandstone rocky landscape countryroad ancient arch arid climate background boulders canyon cascade creek ecosystem environment europe fir trees forest green hiking hilly idyllic journey mediterranean range mountainous natural nature reserve old recreational scenery summer tourism tranquil scene tranquility vacation vegetation wilderness