walking trail and rocks stairs through the woods of the teufelsschlucht devils gorge nationale reserve

german germany irrel landscape rhinelandpalatinate spring teufelsschlucht activity adventure bare trees beautiful cityscapes day environment fall fissured foliage forest geology lias gorge green hiking keuper beds landscapes leaf light lower jurassic luxembourg sandstone mountain nature park outdoor outdoors path plant reserve scene scenic season stones trail tree trekking walking wild wood rocks stairs woods devils nationale