If you are under 21, you must be accompanied by a parent.
Admission is $5; children 12 and under are free. There will be food (Bratwurst, Spätzle etc.) and drinks (beer served in plastic buckets, wine, soda, bottled water) for sale. Doors open at 4 and close at 9, and the park remains open until 11. The park often fills before 9, so come earlier if you can.