plešné lake in the Šumava protected area and national park in czech republic winter time and frozen lake surface

acidic area autumn birch blizzard blue boulders branch canal clouds cloudy cold colour czech descent fall forest freeze freezing frost frosty frozen furniture german granite grass green hiking ice important karl lake landscape local marked massive mountain national nature northern outdoors park plant plechý pleura plešné plöckenstein protected rain republic reserve ridge river rocky route scenery scenic schwarzenberg sea sky slope snow south southern stone surface time tree trip valuable vicinity view wall water weathering white winter wood šumava