Can children visit SEA LIFE California without an adult? SEA LIFE California is suitable for people of all ages, however, if you are under the age of 16 you will need to be accompanied by an adult aged 18 or older. Was this article helpful? Related articles Can adults visit SEA LIFE California Aquarium center without any children? Are SEA LIFE visits guided? Can I bring my own food and drink into SEA LIFE California? How old must you be to enter SEA LIFE unaccompanied? Do you offer parking at SEA LIFE California Aquarium?