For Colchester Castle Parks FAQs, please All ticket categories use fixed tier pricing. Over 6s only. Anyone under 18s must be accompanied by a parent or guardian (21 or over). Fixed tier pricing means the Event Organiser is selling tickets in the same category at different prices. Lower-priced tickets are released first, and when those sell out, higher-priced tickets will become available. There is no difference between these tickets. If more than one price tier is on sale at the same time, we recommend choosing the lower priced option. Please note that this is a fully standing show. Viewings are approximate and subject to change. A max of 6 tickets per person applies. Tickets in excess of 6 will be cancelled.