Yes, wheeled coolers are allowed at Disney World, but they must strictly adhere to the park's size and safety regulations. Any cooler—with or without wheels—cannot exceed 24" long x 15" wide x 18" high (61 cm x 38 cm x 46 cm). This rule is strictly enforced at the security checkpoints to ensure that walkways and queues remain clear for all guests. Furthermore, you are not permitted to bring loose or dry ice into the parks; if you need to keep items cold, you must use reusable ice packs or sealable bags filled with ice. Many families find that a small, soft-sided wheeled cooler is a great way to transport snacks and water bottles throughout the long Florida day. However, keep in mind that you cannot bring glass containers (except for small baby food jars) or alcoholic beverages into the theme parks. If your cooler is larger than the permitted dimensions, you will be asked to return it to your vehicle or store it in a locker outside the park entrance, which can be an inconvenient start to your Disney day.