Small world, I grew up in Ohio going to Sea World too. I loved those big yellow slides, lol. We've been to the one in Orlando a bunch of times too. I would let your little guy wear a bathing suit, so if he gets wet and sandy in the kids play area, you can get him rinsed off easily. Our mister crunch bar was miserable, LOL. Also, I don't remember how the food service was at the one in Ohio, but we've had some terrible experiences at the one in Orlando...slow, expensive and terrible. I had to argue with someone who did not speak English to refill my $8 refillable mug and it just doesn't compare to Disney's counter service. I would pack water and snacks. We did the Dine with Shamu also, which is awesome. The earlier you make your reservation, the closer you sit. I wanted to save Univ/IOA for when we could stay on property, but dh is "disneyed out", so I'm still planning, LOL. Have fun!