maas river with belgian village lanaye and part of cable-stayed bridge, hills and leafy trees in misty background

belgium alluvial border concept conservation country countryside dutch ecology ecosystem environment europe foggy frontier grass green ground hazy holland horizon land landscape meadow meuse mist mountain nature panoramic park reserve reservoir river riverbank riverside rural season shore spring stream summer sunlight tourism travel valley view water watercourse waterway wilderness maas belgian village lanaye cable-stayed bridge hills leafy trees misty background sunny day blue sky fuzzy white clouds eijsden south limburg netherlands