You have to come and visit Snowworld Landgraaf. Biggest indoor park of Europe. They are now building the new summer park which will be the best Landgraaf has ever seen. Opening is planned on the 3rd of may. Lot's of rail lines and options. They're planning on building a big kicker and a smaller one next to it.
for visuals of the new park...http://www.youtube.com/watch?v=zrXebFNB-KM
you can also find pictures on their facebook group called "funpark zoetermeer" which includes the Landgraaf park info. You can even stay in the Hotel of Snowworld but that would be a bit expensive.