We went here a couple times and were not super impressed the first time. It was so hot and there are not facilities or trees for shade. It is very wide, deep and sandy and the time to come is sunset. We sat for about an hour and watched the beach just fill up at sunset and it was worth it. Bring food and water or go to one of the many restaurants nearby afterwards.
After sunset your car will get jammed in traffic trying to get out. Be patient, it's not too bad and you are in Costa Rica. Pura Vida and be careful of people walking.
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