Sea World has a 3 acre kids play area including 3 stories of nets, balls, and slides. A water hole area to get sprayed at and wade in, a huge sand area with toys for kids to play at, a water baloon battle zone (the water baloons are an additional cost).
He can go on wild arctic which they have an alternative to riding the motion similar, as they have another stationary theater to watch the same short video as they show in the ride and at the end of the ride they lead to the same place (base station wild arctic). An area themed as a research center in the arctic stationed next to old ship wrecks and ice flows. The exhibit offers both above and under water viewing of Polar Bears, Beluga Whales, and Arctic Walrus, and sometimes they have two Harbor seals in the pool with the beluga whales. The wild arctic also had different interactive area and a cave for kids to play in.
He'd probably like The Shamu Adventure, Key West Dolphin Fest, and Clyde and Seamore Take Pirate Island (sea lion show) the best. I'd think he'd also like the Pet's Ahoy show (a really interesting Pet show).
The parks also offers various underwater viewing areas at the dolphin coveand shamu stadium dine with shamu pool.
You can pet and feed seals and sea lions, dolphins, and stingrays as well.
Enjoy.
