There are a large variety of attractions kids will love at Wet n Wild Orlando, which is now volcano bay water park. The best are the longer multi-person thrill rides. Oh so fun. The best thing is the relaxing Lazy River with a beer in hand.
You will like the Brain Wash for sure. A fun place and Walking Distance from a bunch of hotels. It is a must see waterpark. Volcano bay Orlando was better than we thought it was going to be. Only Orlando gives you more themed parks to choose and Blizzard Beach is another good pick.
There are plenty of good rides. The head gets bounced around on the on brain wash, we did that about five times. I would plan on at least five hours, if your body can handle it.
Not everybody can stay busy and active for five hours, since you are walking and Splashing constantly. I would try not to bring anything into the park, or as little as possible. The more things you bring in, the more things you need to keep track of and worry about. After, go to Mediterranean Blue for dining.
We just got back from our day at the waterpark then the Hollywood Studios theme park. Be sure to watch the waltons some time. I am so impressed with the depth, great stories, and all-in-all best show. Some are sad, many are super happy, and it just makes me think to watch this show. A time tested winner. Just fantastic.