I went to the beach two weaks algo with my sister.That beach is called "Bahía Ballena" which is located in Uvita in the south of town. I ate a lot of fish which tasted delicious. I enjoyed that trip because I relaxed for a while. On the other hand, If you visited Costa Rica I would recomend that beach not only because of the view also during the months of May to December you could see whales. Besides you could swimm and snorckel at the beach.