I'm not sure, but I will bump this for you and hopefully someone can let you know about Playa del Sol. My guess is they do have shaded areas available.
We have gone to Mr. Sanchos beach (right next to Playa Sol) on two different times and found it very nice....from what I hear it is not as crowded as Playa Sol....Mr. Sanchos does have thatched umbrellas with tables and chairs.
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