Do I need to pre-book my visit with a SEA LIFE Annual Pass? No, you do not need to pre-book with a SEA LIFE Annual pass. Related articles How do I book a time slot with my Merlin Annual Pass? When is LEGOLAND Discovery Centre Manchester Open? How long do I have to use my combination ticket? I have purchased a ticket from a 3rd party how do I book my visit? Can I purchase a Merlin Annual Pass from SEA Life Manchester?