Hellevoetsluis

Hellevoetsluis is a town and former municipality in the west of Netherlands. It is located in Voorne-Putten, South Holland. The former municipality covered an area of 61.20 km2 (23.63 sq mi) of which 20.10 km2 (7.76 sq mi) was water and it included the population centres of Nieuw-Helvoet, Nieuwenhoorn, and Oude en Nieuwe Struiten, all former municipalities. (Wikipedia)