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 Do I need to pre-book with my Merlin Pass to visit The Edinburgh Dungeon? How do I contact you with a guest enquiry? Are there any restriction dates for using my Merlin Pass at The Edinburgh Dungeon? How do I use my National Rail Days Out 2 for 1 voucher?