I would say that IOA and Universal both have enough for the kids to do. One stay with the kids and other ride the coasters. Universals Kiddie area is concentrated in one part of the park with Jimmy Neutron close to the entrance. IOA is spread out in almost each Island. Marvel - Storm Force. Toon Lagoon, Fountains to Jump in, Me Ship the Olive. Jurassic Park - Discovery Center, Camp Jurassic. Lost Continent - Flying Unicorn. Suess Landing - Cat in the Hat, One Fish, Two Fish (Dumbo), Carozuessel, two play areas, and Street Shows.