Disney is no longer allowing guests to bring in loose ice or dry ice into Disney theme parks. This includes any ice in a cooler. Unlike other rules changes, this is effective immediately.
Guests are encouraged to use reusable ice packs instead of loose ice or dry ice. Complimentary cups of ice are also available at Disney food & beverage locations.
The change is occuring to improve guest flow, ease congestion and streamline the bag-check and entry processes
Other Disney Parks Policy Changes