Buccaneer Bay season passes are the best way to enjoy La Mirada’s pirate-themed waterpark for a great value. The park will have a special pass holder preview day on Sunday, May 20 from 10:30 a.m. to 5:30 p.m. 2018 Season pass holders can preview the park and enjoy the day soaking up the sun, floating in the lazy river, splashing in the spray pad areas, and sliding down the water slides.