Time lapse of large cargo ship exiting Eefde sluice gate to continue on the Twentekanaal and another entering, lowering the water level to fit the river IJssel and exiting in the foreground

timelapse balance boat canal channel connection crossing dutch editorial holland level netherlands passage regulate sluice gate spillway technology tourism travel water level water management waterway access business city planning economy embankment europe goods government heritage import infrastructure innovation international trade landmark logistics sluicegate surveillance trade transportation twentekanaal river ijssel overcast cargo ship ship gateway height difference