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 What is a Merlin Annual Pass? Are there any restrictions for children at Madame Tussauds Sydney? How can I get to Madame Tussauds Sydney by car? Are there any restriction dates for using my Merlin Annual Pass at Madame Tussauds Sydney? Can I pre-book my visit to other attractions in advance?