Is there a time limit for my visit? Yes - we have made some changes to ensure your day out is as safe as it is fun! You can read more about these changes here. Related articles Why do I have to book into a time slot? How do I book a time slot with my Merlin Pass? Do you offer a Birthday Party package? Can adults visit LEGOLAND Discovery Centre Manchester without children? Is my 2 for 1/promotional voucher valid at Legoland Discovery Centre Manchester?