Products to use to protect my hair this summer?

Hey! I'm 16 and I'm focusing mainly on protecting my hair from the sun this summer cause i dont want my hair to lighten at all (at least not very much). I just used John Frieda go blonder spray and my hair is at the exact color that I want and dont want it any blonder. Its like a honey/light blonde now and i dont want it to affected this summer by the sun/chlorine/salt water. Any tips, tricks, or products that you know of woul be sooo helpful. thanks (: