Staying hydrated is crucial in the Florida heat, and Disney World has a very accommodating policy for carrying water. Guests are permitted to bring their own reusable water bottles made of plastic, metal, or silicone into the parks, provided they are not made of glass. To carry these comfortably, many visitors use a lightweight backpack or a dedicated water bottle sling. In 2026, many frequent flyers prefer insulated bottles like a Hydro Flask or Yeti to keep water cold for several hours. If you don't want to carry a heavy bottle, you can bring a collapsible silicone bottle that takes up minimal space when empty. Additionally, you can find free ice water at any quick-service dining location—simply ask a Cast Member for a cup. There are also bottle-filling stations located throughout the parks, particularly near newer attractions and restrooms. For those who prefer hands-free carrying, a hydration pack (like a CamelBak) is also allowed, as long as it fits within the standard security bag dimensions and contains no prohibited items or glass components.