Are there restrictions for using a Merlin Pass at LEGOLAND Windsor Resort? For information regarding restrictions, please visit https://www.merlinannualpass.co.uk/ Related articles Do I get free parking with my Merlin Pass? Do I need to pre-book to visit LEGOLAND Windsor Resort with my Merlin Pass? Do you offer a Adult and Pre-schooler Ticket? I’ve already used my pre-book allocation but would like to book for Summer instead, can I cancel? How much are tickets on the day?