I'm a Floridian born and raised (living in Georgia now), but I'm from northwest FL, which I think has decent tap water. Orlando water is pretty gross. The stuff that comes out of the fountains when you ask for water at the quick service locations is usually filtered, and is ok when cold, but once it warms up, it is not good. In the parks, stop in for ice water when you want it. For the room, I would buy bottled, even if it's the larger gallon bottles, so you aren't using as much plastic. There are cups in the rooms. We tend to start each day with a fresh bottle of spring water and then refill it with cold ice water from the quick service locations as needed and drink it while it's at least somewhat cool.