Spend the sixth day of your trip relaxing at Apo Island, a small volcanic island known for its vibrant coral reefs and diverse marine life. Take a boat from Dumaguete to Apo Island and spend the day snorkeling or diving in the crystal-clear waters. Marvel at the colorful coral gardens and swim alongside sea turtles, which are abundant in the area. Enjoy a beachside lunch and take a leisurely stroll along the island's pristine shores. In the evening, return to Dumaguete and indulge in a seafood feast.