Sea World Orlando is offering a free annual pass for Florida resident preschoolers (5 and under). We took our three year old last month and he loved it!
https://seaworldparks.com/seaworld-orlando/pages/preschool-card?from=Home_Promo&m=1
https://seaworldparks.com/seaworld-orlando/pages/preschool-card?from=Home_Promo&m=1