The warning is commonly used when creatures such as jellyfish, stingrays, sea lice, or Portuguese man-of-war have been spotted nearby. These animals can cause painful stings or injuries, so entering the water may require extra caution.
A purple flag may appear by itself or together with other colored flags. For example, red or yellow flags can provide additional information about waves, currents, and general swimming conditions, meaning several risks may be present at the same time.
If you see a purple flag, check posted notices or speak with a lifeguard before swimming. Understanding the flag system can help you make safer decisions while still enjoying your time at the beach.
