Honestly it depends on the day. Florida "winters" are unpredictable. Some days it is warm and sunny and a perfect day to go to the water parks. Other days can be cloudy, overcast and downright cold. The colder the day the less crowded it is. The water is heated, but on the cold days that doesn't always help because you have to get out of the water at some point and the air doesn't feel heated when you are wet.