I visited this place during my Interrail trip in the year 2024. It was very simple to get there with public transport. Only catch two buses from Roterdam. The bus drops you just on the entrance, where you can start a pleasant walk watching the mills and the landscape.

It´s a walk of about 2 hours, where you can also visit one, and see the traditional trade of a miller in the Netherlands.

For me, it's a half-day trip that's worth it.