aerial from naviduct krabbersgat near enkhuizen in the netherlands

holland shipping traffic modern aqueduct architecture watercourse aerial view connection driving guide highway protection separation transportation flood lock seascape ships cruise gate netherlands technology travel destination construction industry country road dam famous place nature nautical vessel rural scene vacation bridge environment lake enkhuizen houtribdijk krabbersgat levee naviduct sash sluice tour tourism markermeer ijsselmeer combination