Hellevoetsluis Dry Dock

Hellevoetsluis Dry Dock is a historic double dry dock in Hellevoetsluis, Netherlands. It was constructed between 1798 and 1822 under the direction of Jan Blanken, and was part of the former Rijkswerf Hellevoetsluis. The dock is one of the rare surviving double dry docks. It is a national monument, and is in operation as part of the maritime attraction 'Dry Dock Jan Blanken',.