Cargo ship entering Eefde sluice gate with closing of the doors, water ascending and continue on the Twentekanaal on an overcast day with a rainbow at the end

timelapse boat canal channel connection crossing dutch editorial netherlands passage regulate sluice gate spillway travel water level waterway access business city planning economy 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 doorway opening closing ascending exiting rainbow science