sunny cliff with light green trees in mullerthal, luxembourg

green flower tree garden plant woodland leaf nature shrub rock forest grass jungle vegetation ruins lawn branch sunny curve mullerthal luxembourg rural region east canton echternach spectacular geological formation cliffs walk area located sauertal berdorf waldbillig hiking trails build offer ways explore luxemburg lux grand duchy europe waldbalaquo lleg kanton mafrac14 llerthal cliff light trees erosion edge stone crumbling control eroded root plants earth landslide