A bit further away, but easy for a trained cyclist (and more easy with a car):

Just in case it should be raining, the kids will have lots of fun without getting wet in Toverland indoor playing paradise.

Want to lose yourself in the green jungle? Go to Irrland, a mad mix of sand, water, maze, farm, corn playing ground, aeroplanes and a lot more.

A lot of different activities at De Wevert.

Interested in the things that farmers did long ago? You can see it at the historical farm De Locht. They also have temporarily expositions to several themes.

A playing paradise in the green where it is going up and down is Klein Zwitserland.

Also the missionary museum at Jochemhof in Steyl are worth your visit.

An afternoon in the fields, learning and having some (haelthy) sweets also? Visit the Strawberrieland.