AMersfoort Zoo is one of them. The zoo is 25 minutes drive from our house. We've been there many times. It is very nice for a day out. They also have playground where children can play after a long walk in the zoo. I am sure that this summer it will be very busy. There are also other tourist spots to visit.
Burgers' Zoo, Avifauna, Artis zoo, Apenheul, Zoo Parc Overloon