alpine mountain panorama at sylvenstein stausee water reservoir dam lake isar valley upper bavaria germany europe

alpine alps background bavaria bavarian beautiful blue bridge calm dam europe forest german germany green horizon isar isarauen isarwinkel karwendel lake landscape mountain nature oberbayern outdoor panorama reflection reservoir river scenery scenic shore silverstein sky spring stausee summer sun sunlight sylvenstein sylvensteinspeicher tourism traquil travel tree upper valley water