Condensed a 5 hour day at Ocean World into 2 min for the intro it was one of the cheapest excursions we have done with our kids. Everything was included minus the food! From all the shows, snorkeling in the fish tank to all the pool and slides.
It's quite a walk from the pier to the busses, also make sure to catch the free cabs on the way back. If not doing this with your cruise line, make sure you leave early and give yourself ample time to get back to the ship. Traffic gets CRAZY