bridge over the river kalte bode at the foot of the brocken in the harz national park

river stream pond water garden tree watercourse waterway woodland flower autumn bridge leaf reflection forest canal park wilderness stream river creek brook bridge rocks rocky stones flow flowing fresh water wildlife waterfall waterfalls schierke bode rapids torrent forest rapid running mountain mountains idyllic idyll harz brocken landscape national park harz countryside nature protection biosphere reserve nature natural pure stone fresh drinking recreation germany europe hiking trekking trail