You can pre-book your entry with a Merlin Annual Pass by visiting the SEA LIFE London website here.
Please note, to reserve your ticket for your desired date and time there is a £1 reservation fee payable at the time of booking. Reservation bookings must be made 24 hours in advance.
During peak periods ALL Merlin Annual Pass holders need to also book into a time slot. This can be done in two ways: by either using the link above to pre-book a time slot for £1 before your visit, or for free by collecting a time slot on the day.
If you choose to pick up your time slot on the day, please be advised that you will have to queue for up to 1 hour at peak times, and that the next available time slot could be an hour or more past your desired time. We therefore recommend that you pre book online.’