How do I book a golden experience at Shrek's Adventure! London Click here to choose which experience you would like to book for, and follow the instructions to choose your preferred date and time. Related articles Why do I have to pay £1 to reserve my entry ticket? How do I contact you? Can I pre-book my entry with a Merlin Annual Pass? How does the time slot system work and what time should I turn up? I would like to use one of my golden experiences at Shrek's Adventure! London.