Spend your last day on Gulangyu Island relaxing on its pristine beaches. Start your day by visiting the Longtou Road, a scenic coastal path offering breathtaking views of the ocean. Enjoy some beach time at the popular Sunlight Rock Beach, where you can swim, sunbathe, or simply relax with a book. If you're feeling adventurous, try some water sports like kayaking or paddleboarding. In the afternoon, explore the underwater world by going snorkeling or scuba diving. End your trip by enjoying a delicious seafood dinner at one of the island's many waterfront restaurants, savoring the fresh catch of the day.