Can I purchase a Merlin Annual Pass from Shrek's Adventure? Of course! Once you have decided which pass to go for, click here to purchase your passes. You can collect your Merlin Annual Passes from the Box Office on arrival. Related articles Can I pre-book my entry with a Merlin Annual Pass? Why do I have to pay £1 to reserve my entry ticket? Do you offer a Merlin Annual Pass where you can pay in monthly instalments? Can we all enter the attraction at the same time through the same door? Why do you no longer offer Merlin Membership as a product?