Welcome to planDisney, Robin!
Water is the most essential thing when visiting Walt Disney World. The hot weather, the miles of walking, the joyful screaming, and the salty snacks can leave you very dehydrated. Thankfully, getting water at the theme parks is pretty easy.
There are water refill stations at each of the theme parks. Therefore, you can bring your own water bottle and refill at those stations throughout the day. Since the water isn't super cold, I like to fill my water bottle with ice in the morning and then top it up throughout the day. I'll even add more ice throughout the day if possible.
To my knowledge, there are currently two water bottle refill stations at
Magic Kingdom Park. These are actually both located in
Cosmic Ray's Starlight Café. You'll find them in between the food bays.
EPCOT has the most water refill stations. You'll find one outside Guest Relations, near
Connections Eatery. There's also one at the bathrooms before Canada on the walkway between World Nature and World Showcase. There's even one at the
Disney Skyliner bathrooms by the International Gateway Entrance. Finally, there's also one connected to the water fountain in the Odyssey Building (assuming that building is open when you visit). Bonus: You can also refill your water bottles at the drinks machine at Connections Eatery, Sunshine Seasons, and Regal Eagle.
Since this is planDisney, we try to give you even more than what you asked for. Think of it as an extra sprinkle of pixie dust. Let me share information about water bottle refill stations in the other two theme parks too. At
Disney's Animal Kingdom Theme Park, there are three stations, which are located in the lines of the following attractions,
Avatar Flight of Passage,
Na'vi River Journey, and
Expedition Everest. Bonus: You can also fill up your water bottle at the drinks machine in
Satu'li Canteen.
At
Disney's Hollywood Studios, there's one by the "Coca-Cola" building, which is located outside the park entrance, before security, by Disney Skyliner. You'll find two refill stations in
Star Wars: Galaxy's Edge. One of them is located at the exit of
Millenium Falcon: Smuggler's Run and the other is by the restrooms close to the
Milk Stand. Bonus: You can also refill your water in
Docking Bay 7 Food and Cargo.
I hope that's helpful, Robin. Don't forget, you can always ask for free iced water from any quick-service restaurant. Bottles of water are also available for purchase.
See ya real soon!
Mike