Are there restrictions for using a Merlin Pass at The London Dungeon? For information regarding restrictions, please visit https://www.merlinannualpass.co.uk/ Related articles Is the attraction suitable for children? How do I contact you with a guest enquiry? Can I amend my tickets to an earlier time or date on Booking Portal? What is the recommended minimum age? How can I purchase Merlin Pass Friends & Family Tickets for The London Dungeon?