SeaWorld San Antonio is decking out the halls for its annual Christmas Celebration, an extraordinary holiday event November 18 - December 31. This wintery, watery wonderland features Christmas shows, holiday lights, festive foods, Santa Claus and more! The park is covered with 8 million lights, the largest Christmas light display in Texas, and guests can meet Rudolph the Red-Nosed Reindeer and friends. 'Tis the season to create family memories, only found at SeaWorld’s Christmas Celebration.