They have wagon for rrent , but I'm not sure if it's okay to bring your own wagons.
I know wagons are allowed, and coolers all to be inspected. No canopies. I did see some 9ne with chairs too. If you are talking about the metal rolling shopping carts I think those would be fine.
I honestly didn't see anyone with wagons, lots of strollers though. I'd stick to the rules though because I'd hate for you to get there, go through the lines to get in, to park, and purchase tickets, just to have your cart not allowed.
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