wadden sea near lauwersoog, friesland, netherlands

access angle architecture background banner barrage border building clevering cleveringsluizen coast coastline control dams defense discharge dyke engineering entrance europe flood friesland gates groningen holland lake landscape lauwers lauwersmeer lauwersoog lauwerssluizen locks management modern nature netherlands outdoor panorama sea seascape sluices sluis summer sunny travel view wadden water waterways wide