The best area to see the windmills is the Rotterdam region, especially Schiedam and Kinderdijk.
We went to Kinderdijk, which is about 15 kilometers from Rotterdam and is perhaps the best area to see the windmills complex, and to see the management of the water flow through the canals, oroginal Dutch style.
In total there are 19 mills in the complex of the park and others that surround it, all built around the XVIII century. They are located about 20min from Rotterdam, and it is possible to take a bus from the city center.
The region is very beautiful, with the mills, fields and ducks that live there, there are hundreds of ducks flying from one place to another.
Admission to the Kinderdijk park is free. There are two paths between canals and windmills, and a true charming landscape.
Coordinates of the car park, where we sleep with the motorhome:
51º53’01.4”N 4º39’38.5”E