Your Kellogg's cereal pack will have a unique code printed inside. Pre-book your tickets via www.merlinfun.co.uk and follow the steps to complete your booking.
Please note: all promotional tickets must be pre-booked to guarantee entry. On arrival at the attraction, you are required to present the promotional voucher along with your pre-booked e-ticket. If a valid voucher cannot be supplied, you'll be required to purchase your second ticket at full gate price at admissions and entry is not guaranteed.