Do Merlin Annual Passholders need to pre-book entry? We recommended pre-booking at thorpepark.com to guarantee entry. Check restriction dates here: https://www.merlinannualpass.co.uk/important-information/terms-conditions/restriction-dates/ Related articles Do Passholders get scare maze discount? Are there restrictions for using my Merlin Pass at THORPE PARK Resort? Do Thorpe Park Annual Passholders need to pre-book entry? How much are tickets? Is the event running from 11th – 14th October?