I haven't visited that many beaches in this life (the other significant one that I can remember, albeit a very small one, was rather Nordic and cold~), but what I can say for sure is that Cupabia is a beautiful beach worth visiting.
It's in a quite secluded area, and thus there's not that many people usually. I especially enjoyed the mornings when (even in season) there weren't any humans on the beach.
漂亮的海滩,但不算特别出众。我们去的那天,水质不太干净。不过,还是值得一试。