SeaWorld San Antonio is offering free admission in 2022 to preschoolers and teachers. Kids age five and under are eligible for a free Preschool Card, and active and certified Texas teachers can get a free Teacher Card. Both cards allow unlimited admission to SeaWorld San Antonio for the entire 2022 season. For another 30-dollars, cardholders can also add Aquatica. Parents of preschoolers and teachers need register online before February 28th.