If you already have passes to SeaWorld, the evenings during summer are worth a visit. We went last year and really liked their cirque style show. Just looked on their website and it's scheduled for this summer too: Cirque Electrique. "Cirque Electrique is a nighttime spectacular featuring daring aerial performers in advanced LED suits that mesmerize audiences as they bounce and fly in and over the waters of Mission Bay. In addition to the return of world flyboard champion Jake Orel, new this year for Cirque Electrique is USBA world freestyle Jet Ski champion Mark Gomez." The flyboard champion is mesmerizing.
It cools off quickly in the evenings at SeaWorld, but on the plus side you won't get sunburned!