How do I pre-book a timed entry slot with my Merlin Pass? Please remember it is now essential for all guests to pre-book a time slot for your visit, including for Merlin Passes - All visits can be booked or reserved here. Related articles Can I contact you via Live Chat? How do I purchase friends and family tickets for LEGOLAND Discovery Centre Birmingham? Where do I go to gain entry with my Merlin Pass? How do I contact you? I've booked the wrong tickets, what do I do?