In the past, I packed a few empty (individual size) apple juice bottles. Before heading to the parks, I stop at the food court, fill it with as much ice as possible, then top it off with water. I’m able screw the lid on and keep it in my purse/tote to sip on throughout the morning and it stays cold for awhile. At lunch I’ll rinse the bottle, get a cup of ice and a cup of water from wherever we eat, then refill it. We do the same thing in the evening when we’re heading back to the park. This saves on purchasing water or drinking the water from fountains plus when it’s extremely hot (we always go in August), we always have cold water on hand. I can’t remember if the juice bottles in the food courts have a wide mouth which is needed to put in ice. Does anyone know? If so, I empty bottles wouldn't need to be brought from home.