How do I book a time slot with my Merlin Annual Pass? To book in with your Merlin Annual Pass, please use out Annual Pass pre-book option here. Related articles How can I get to Madame Tussauds Sydney by car? What is a Merlin Annual Pass? Do you have a re-entry policy? Are there any restrictions for children at Madame Tussauds Sydney? Are there any restriction dates for using my Merlin Annual Pass at Madame Tussauds Sydney?