Do I have to pay for a under 3 ticket to SEA LIFE? No, anyone under the age of 3 goes Free at SEA LIFE California. Was this article helpful? Related articles Do I have to pay for a child aged 2 or under? What can my child 2 and under do? What are the standard ticket prices to LEGOLAND California Park and SEA LIFE Aquarium? What benefits do I have with a Silver Annual Pass? Do I have to pay for a Toddler (1 to 2 Years Old) to visit the Water Park?