Where can I find information on Merlin Passes? Please visit the Merlin Pass Website at www.merlinannualpass.co.uk You can also find FAQs via the Help Centre here. Related articles I'm a Merlin Pass holder, do I need to pre-book? When is Shrek's Adventure London Open? Where would I find information about a career with Merlin Entertainments? What characters are in Shrek' Adventure London? Under 2s go free – how to book