It’s easy to forget about basic necessities and become dehydrated when you’re hopping from ride to ride and having fun, but you can quickly get overheated, especially when you’re in Florida or California. But that doesn’t mean you should buy a bottle of water at Disney. They can cost up to $4. Instead, bring a refillable bottle of water for each person at the beginning of the day and fill them up at water fountains around the parks. If you forgot the water bottles, just head to any quick-service dining location. They have cups of free ice water for all guests!