They don't care if it is a bottle of water but that's it. I brought a water bottle into the park everytime I went last year (opened and not opened) and they didn't say nothing about it.
I would like to see a Great Lake Grandstand spotlight and have spotlights for all the shows that ran in the Great Lake like Lethal Weapon(best one in my opinion). They really need to come out with a new show for the lake or the Batman Stunt Arena.