This time around while out in LA, I figured going in the pool with loose hair couldn't be that bad, now that I'm old enough to do my own hair (lol) and my hair is now long enough to go into a ponytail... that would be my saving grace, and it was! I grabbed whatever conditioner I could find, and smoothed it onto my hair after I was finished with my pool shenanigans. On my way to tan, I put the back of my hair up into a little high bun and left what would be the bang area out. It shrunk up quite a bit... but if you don't mind the skrunken look and want to pull off a little more than a curly fro or ponytail after the pool or beach, this can be a cute and quick little updo look for you. Adding some conditoner is a great way to keep your hair from totally drying out from pool and/or ocean water and the sun, and get a little deep conditioning time in. You can even try a conditoner with SPF if you know you'll be out in the sun for a while, or adding a little oil to your conditioner if you have really dry hair.
I hope this saves someone's beach/pool hair!