No. Once you enter the waterpark area you are not required to wear a mask.
Masks are required outside the water park area, upon entering the building.
You don't have to wear it at all inside the water park
Not in the water park area, everywhere else though.
Not inside the water park but you have to wear your mask in the rest of the park.
Actually, in the waterpark, they ask you to wear a mask if you are in line to order food & drinks. They have sanitizer and masks available at the counter. Otherwise, you're mask free in the waterpark.
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