relfecting saar water surface above the river lock mettlach

tree lake forest river pond wilderness wetland vegetation woodland reservoir reflection jungle stream nature swamp mettlach germany 2024 saarbrafrac14 cke front old town small saar valley close saarschleife north german area saarland borders luxembourg france idyllic quiet touristic summer bike routes ships passing sarre saravus channel channeled managed calm sluice lock canal schleuse staustufe wall water management shipping tourism travel destination trip famous tourist vacation journey saargebiet der relfecting surface