Very nice, Herman. Toronto has a project similar to that that has been extremely successful. Tommy Thomson Park. 5 kilometers and 250 hectares, it started off as landfill for construction sites. Sand from dredging the port land areas was also dumped there, that eventually turned into lagoons.
Really, the place was just a neglected dumping site that turned into an accidental wildlife wilderness. Now, it is protected. It is a very bleak place to walk, due to the distance and you have to contend with weather. In the summer, it can be extremely hot, in the winter, on a windy day, it is brutal. However, all sorts of birds nest there. It is quite amazing.
Congratulations on a potential new site to visit for nature. Nice to see it is being done for Nature First.
I have a similar place I used to frequent weekly near my house. However, developers around the park have completely RUINED IT! Too many people, too many dogs, cyclists etc frequent the area and although there still are birds and other animal life, it is no longer the same.
I am glad to hear the Netherlands is actively doing a project like this, kudos to your government!