aerial view dutch sluices kornwerderzand between ijsselmeer and wadden sea in the netherlands

aerial afsluitdijk architecture barrier birds coastline construction dam dike dutch europe eye friesland harbor highway holland ijsselmeer infrastructure jam kornwerderzand lake landscape lock lorentzsluizen motorway navigation netherlands ocean protection road sea separation ship shipping shot sluice sluices structure top traffic transport transportation travel view wadden waddenzee water waterway works