Can I visit LEGOLAND today and then the Water Park on another day? No, you must visit LEGOLAND and the Water Park on the same day. Was this article helpful? Related articles Do I have to visit both LEGOLAND and the Water Park on the same day? Does my LEGOLAND ticket include entrance to the Water Park? Do guests staying at the hotels get provided with towels for the Water Park? When is LEGOLAND California Water Park open? How will the park verify if visitors have been vaccinated?