Does my Costco Resort play pass include entrance to the LEGOLAND Water Park? Unlimited admission to LEGOLAND® California, Water Park and SEA LIFE® Aquarium, from date of purchase through January 18, 2020. Blackout dates: 12/26/2018-1/1/2019 and 12/26/2019-1/1/2020 Note that your first visit must occur by April 30, 2019 Was this article helpful? Related articles When is the best time to visit the Water Park? Do I have to pay for a Toddler (1 to 2 Years Old) to visit the Water Park? How can I contact you? What if I already have admission tickets and just need a hotel room? Do you offer a ride pass for autistic children to use?