Yes, but I would call park & recreation and make sure you don't need some kind of permit. Also it insures you a spot at the park that day. Im pretty sure a permit is free and a guarantee that the fun won't be spoiled. My ex gf was an event planner at Ranch Catering for many years...
Yes
Yes, I've seen and been to parties with them
As others have said I think you can.
We see them just about every weekend.
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