saar shore in mettlach with classiv building between the trees

river lake tree reservoir pond wilderness waterway wetland forest water stream plant reflection mountain vehicle boating flower saar shore mettlach germany small town valley close saarschleife north german area saarland borders luxembourg france idyllic quiet touristic summer bike routes ships passing sarre saravus channel channeled managed calm tourism travel destination trip famous tourist vacation journey saargebiet der old center historic history medieval building architecture heritage culture classiv trees