How do I book a time slot with my Merlin Annual Pass? You do not need to book a time slot with a Merlin Annual Pass, simply turn up and join the priority queue. Related articles How long does it take to go around SEA LIFE Blackpool? Do I get any perks when visiting SEA LIFE Blackpool, with my Annual Pass? Why am I booking into a time slot? Do I get fast track entry with a SEA LIFE Annual Pass?