Welcome to Marine Life 101 on the beautiful Emerald Coast! Purple Flag Up: When you spot the purple flag, there might be jellyfish and stingrays around, but don’t worry—you can still enjoy the shallow waters safely! In case of a sting: Call 911 immediately if there are signs of an allergic reaction, such as difficulty breathing. For most cases, rinse the affected area with saltwater (avoid touching with bare hands),...