is this a recipe ? help !

My hair is a mess , frizzy, terrible , uf. I have tried thousands of products and saloons, but nothing . But, there's something strange about it : every time i go to the pool, swim under the burnig sun and i stay for minimun two days , my hair looks FANTASTIC ! the frizz goes away and beautiful curls appear ( and i don't have to do nothing to get this ! ). PLEASE, PLEASE , can you tell me why is this ? how can i get this style without having to go to the pool ?
Thanks so much .
Thanks so much .
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