A visit to SeaWorld isn’t complete without watching Shamu swim and splash during the “One Ocean” show. Killer whales, fountains and music come together for an environmental show, but it’s the splash areas the kids will most enjoy, where they are more likely to get drenched by Shamu and his friends. “Azul” is another show featuring performing dolphins, “Cannery Row Caper” features barking sea lions, and even Elmo makes an appearance at the Sesame Street Presents “Lights, Camera, Imagination in 4-D.”