Can you visit just the water park and not the amusement park? Or do you have to buy both?

Yes. You can buy tickets for either one separate or together !

You can buy either or but it is usually a better deal to buy a package.

Yas you can

Yes you can

Yes you can, there is parking in the back of the park.

Yes you can just visit the water park.

I think you can just visit the water park but I'm not for sure. The water park is in the back of the park by the hotels