Glad you and others like it. Its a tourist attraction, but unlike most it is a natural environment with relativity low visitor numbers. Nobody is going to travel to Belgium just to visit this park and its pretty isolated, on the other side of the country as Bruges for example, so its not invaded by Chinese and such.
There is also an arboretum and fishing locations, an open air museum and a castle to visit. Their website is
here, but its very basic, since online marketing to mass audiences isn't what they are interested in.
Entry price to the park is free.