Sanya is famous for its pristine beaches, so dedicate a day to enjoying the sun, sand, and sea. Visit Yalong Bay, known for its crystal-clear waters and white sandy beaches. Take a dip in the ocean, go snorkeling or diving to explore the vibrant underwater world, or simply relax on the beach and soak up the tropical vibes. In the evening, indulge in some fresh seafood at a local restaurant.