lake christlessee in winter at trettach valley near oberstdorf, idyllic south bavarian landscape in germany

alps attraction autumn awesome bavaria bavarian blue bright calm christlessee cloud cold crystal cyan foliage forest gem germany green ice idyll idyllic lake landscape leaf mountain nature near nobody oberstdorf panorama petrol pictorial pond scenery scenic sea snow south travel tree trees trettach trettachtal turquoise upper valley water white winter