Well, I would look around at other attractions around Sea World. One thing that comes to mind is the Alamo. I assume you are talking about Sea World in TX. If you look online for San Antonio attractions, there are many fun ideas.
You could visit some of the wildlife refuge zoos, visit a 20 duck :), The River Walk I hear is beautiful, and lots of other places that might fit your family’s interests. Debbie Wife to Eric and Mommy to 5 wonderful kids