Anyone tried the water parks in January? I know that BB will be open. Is the weather ever really warm enough to get wet? I can't imagine getting out of a pool when it's in the low 70s outside, let alone any colder.
Is this just for die-hard waterslide fans or polar bears?
Is this just for die-hard waterslide fans or polar bears?

It all depends on the temperature outside on the day you go. The water itself is heated, it's just when you're walking around outside you might feel cold. We found it to be a very pleasant experience-short lines and it wasn't too cold. I think it was in the mid 70's the day we went.
