Do I have to visit both LEGOLAND and the Water Park on the same day? Yes, the Water Park entrance is inside of LEGOLAND and therefore you must visit both Parks on the same day if you ticket includes the Water Park admission. Was this article helpful? Related articles Can I visit LEGOLAND today and then the Water Park on another day? When is LEGOLAND California Water Park open? Do guests staying at the hotels get provided with towels for the Water Park? Are there any restrictions on Swimwear at the Water Park? Do I have to pay for a Toddler (1 to 2 Years Old) to visit the Water Park?