No reservations are required. You may have to pay a small parking fee.
I don't believe you need a reservation, but you have to pay for parking. Always safe to call ahead. If your vehicle is a bus you will need a parking permit.
I not positive it I believe your correct. No reservation needed. They charge by the vehicle, the bigger the vehicle the more they charge, and have plenty of parking. If your going on a weekend I would call to be safe. Have fun.
I can't say that I am sure for groups of that size but I haven't seen any barriers where they might prevent you from coming in with thirty kids
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