Are there any restrictions or excluded periods? You'll be able to use your Merlin Annual Pass to visit the attractions whenever you like, subject to the operating calendars of each attraction. Please see our operating calendar HERE. Related articles Can I collect my Merlin Annual Pass at another Merlin Attraction? How do I buy tickets for Madame Tussauds Las Vegas? Do you get additional benefits with a Merlin Annual Pass? Is Madame Tussauds suitable for children? How long does it take to go around Madame Tussauds?