If there's one beach I tell everyone not to miss on Kauai, it's Poipu Beach. This is the crown jewel of the south shore—a stretch of golden sand so vibrant it looks like it was painted straight out of a postcard. The water here shows off every shade of blue, from pale aqua to deep indigo, and the beach itself is a series of small coves and sections, each with its own personality. Whether you're here to snorkel, swim, watch turtles, or simply sink your toes in the sand, Poipu delivers.