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The 27-km North Sea Canal from Amsterdam reaches the sea at the Zeesluis IJmuiden, the world's largest sea lock. To prevent flooding the flow of groundwater is controlled by the largest pumping station in Europe. #NorthSeaCanal #Amsterdam #ZeesluisIJmuiden

Rolling slide gates operating on a rail system control water levels in the Zeesluis IJmuiden on the North Sea Canal, the Netherlands. #rollingslidegates #ZeesluisIJmuiden #NorthSeaCanal #Netherlands

The Zeesluis IJmuiden, the largest sea lock in the world, provides access to the North Sea from the Port of Amsterdam, the Netherlands. #ZeesluisIJmuiden #NorthSea #Amsterdam #Netherlands