It was a hot and sunny day, so it was perfect to be on the water. You can also drive here.
On the website it explains: "UNESCO considers the area...to be proof of human inventiveness in reclaiming and protecting the land. The gorgeous windmills of Kinderdijk are part of a unique phenomenon. The windmills and pumping stations drain the excess water from the Alblasserwaard into the river Lek via the Elshout sluices. Subsequently, the river discharges the water into the sea."
There are 19 windmills from the 18th Century and most are fully operational. It is a really beautiful location and full of history.