The Water Park of America, not actually affiliated with the Mall of America, is located in Minneapolis/Bloomington, MN.
An assortment of body slides
Two tube slides
A family raft ride
A lazy river
A wave pool
A tree house
Some of the things, obviously, I'm a little too big for. I obviously couldn't ride the raft ride since I was here on my own, and I was a bit too nervous for the flow rider.
To be honest, this really wasn't much of a water park. The tube slides were short and not terribly exciting. The body slides had the sun beating on them and were bumpy. Besides the flow-rider and the raft ride, which really, is designed for a limited audience, there wasn't anything special about this water park.
The lazy river was nice, as it went around the park taking you to the different parts of the park, including the wave pool. Water also could dump on you on the river. I, on principle, like wave pools as well. Lines were short as well.
If you're staying at the Radisson near the Mall of America, the water park comes with the room (I think.)
Overall, maybe a good waterpark if you're traveling to Minneapolis (which is a very nice city) with kids, but I wouldn't go too out of your way to see it. If you're on your own, I'd probably skip this one.
Transportation: Fly into the Minneapolis/St. Paul Airport (MSP). If you need transportation, take the #55 Hiawatha Line (train) to the Mall of America, and then walk, it's not too bad and is very pedestrian-friendly.
Rating: 2.5 out of 5 stars.