I have a huge straw hat that I wear out in the heat. It helps a lot just to be in the shade and hat helps you bring your own shade. We are headed to the beach next week and I will be under a umbrella or wearing that hat.
A quick trick is to put a cold washcloth on the back of your neck if you start to feel over heated.
Yes, very very well hydrated, take breaks if you feel tired, or to get out of the sun and you'll be fine hun!