Marvel at Marvel's pristine and sandy beach, and collect your snorkeling equipment to explore the sea. Your snorkeling guide will give you time to relax and change before your first snorkel adventure, either at the coral reefs to the north or south of the aqua center. This will give you a chance to see the green turtles and dugongs (sea cows) that normally frequent the middle of the bay.Your second snorkel session will be aimed at seeing the green turtles and dugongs (sea cows) that normally frequent the middle of the bay.