Yes, you are allowed to bring a cooler into Walt Disney World, provided it adheres to very specific size and safety regulations that have remained consistent through 2023 and into 2026. The most critical rule is the size: coolers, bags, or backpacks cannot exceed 24" long x 15" wide x 18" high (61 cm x 38 cm x 46 cm). Furthermore, you are strictly prohibited from bringing loose ice or dry ice into the parks. If you need to keep items cold, you must use reusable ice packs; loose ice is a safety concern for security screenings and can lead to leaking messes. Another important restriction is that glass containers are not allowed, with the exception of small baby food jars. While you can bring your own food and non-alcoholic beverages, you cannot bring a cooler with wheels into the parks; it must be a carry-style or backpack cooler. Many families find this to be a great way to save money on water and snacks. If you have a larger cooler that doesn't fit the rules, you may be able to store it in the lockers available outside the park entrance, but you won't be able to pull it around the themed lands.