For Cardiff Castles full FAQs All under 18s must be accompanied by an adult ticket holder (aged 18 or over). No unaccompanied under 18s are allowed on site. Children aged 2 and under can attend for free and don't require a ticket. All other children must have a full price ticket to enter the festival. Please be aware no prams are permitted at TK Maxx presents Depot Live. A max of 6 tickets per person and per household applies. Tickets in excess of 6 will be cancelled.