Yes, Disney Parks have a specific bag size limit to ensure safety and maintain the flow of foot traffic. Suitcases, bags, coolers, and backpacks—with or without wheels—cannot be larger than 24" long x 15" wide x 18" high (61 cm x 38 cm x 46 cm). This rule applies to all four theme parks and the water parks at Walt Disney World and Disneyland Resort. All bags are subject to a security screening, which in 2026 typically involves advanced "contactless" scanners that allow you to walk through without emptying your bag. It is also important to note that loose ice and dry ice are prohibited; if you are bringing a cooler for snacks or medication, you must use reusable ice packs. While you can bring your bag onto almost every ride (usually placing it at your feet or in a mesh pocket), oversized luggage that exceeds these dimensions must be stored in a locker outside the park entrance or left at your hotel's bell services.