Maassluis is a city in the western Netherlands, in the province of South Holland. The municipality had a population of 33,567 in 2021 and covered 10.12 km2 of which 1.64 km2 was water. It received city rights in 1811.
Wikipedia https://en.wikipedia.org/wiki/Maassluis
Official Website https://www.maassluis.nl/
Coordinates 51°55'19.17" N 4°15'14.829" E