Usually they're open from around Memorial Day to Labor Day for full hours. A couple/few weeks before/after that for limited wknd hrs. I think those are mostly locals going then Cus we get a really good discount :) I do not know the exact dates for next year as they've not yet published the 2018 schedule. I hope that was a little helpful.
Go on thier website
It is open thats all i can tale you today. Tomorrow i will let you know more
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