Is she wearing sun glasses or just squinting in the bright sun like most kids?
Just got some great advice: Coconut water. It has fewer calories, less sodium, and more potassium than a sports drink while being super hydrating with electrolytes. I drink it occasionally but never new it was so hydrating. Had DD try some...she didn't like the taste - yet.
5 gal buckets of ice and ammonia water that you would stick your hands into if you were starting to succumb to the heat
Not sure about the ammonia but I know that in previous summers the cold 5 gal bucket of ice-water FOR THE NON-PITCHING arm was a great cooler-downer.