Monumentday

Open Monumentday is a yearly returning day where National Monuments are open for visitors. Naturally Werelderfgoed Kinderdijk is opened during this yearly event. You can visit and admire the two museummills. (The other 17 windmills are inhabited bij miller families)
 
This year the Open Monumentday is during the Windmills in Floodlight week. Therefore you can admire the mills with spectacular lighting.