Park Reservations were put in place in 2021. At the time of this writing, ticket holders and Magic Key passholders must make a reservation at the park where they wish to start the day. Those with Park Hoppers (or Magic Keys) are free to switch parks after 11:00am without a further reservation. The number of park reservations available is dependent on the ticket type being used, and reservations do run-out. Opting for a different ticket type (for example, adding Park Hopper) MAY open-up availability. Guests are not able to use tickets or passes without a corresponding reservation.
For more on ticket types, find our guide here: