It's cheaper to stay depending how many are going.
No you don't, I was there April 6th and they do have Day passes for people that just wanna come for the water park.
Yes you do. They don't sell day passes.
No. To buy daily waterpark pass is $120. If you are staying at the resort it is included.
You do or have a friend that is if u have a friend they have to add a daybpass for $50 a person to their room
Depends on the location. Poconos didn't allow - Sandusky did.
They do day passes for the water park. But it can be pricey and might be more cost effective to stay the night. You can go to the water park the next day even after check out time.
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