Are there restrictions for using a Merlin Pass at LEGOLAND Discovery Centre Birmingham? For information regarding restrictions, please visit here. Related articles How do I pre-book a timed entry slot with my Merlin Pass? Does LEGOLAND Discovery Centre Birmingham have a car park? Where can I find information on Merlin Passes? How do I purchase friends and family tickets for LEGOLAND Discovery Centre Birmingham? I’ve already used my pre-book allocation but would like to book for Summer instead, can I cancel?