Why Beaches Use Purple Flags to Indicate Potential Marine Hazards

A softly waving purple flag along the shoreline is often a quiet but important warning from lifeguards. It signals that there may be hazardous marine life present in the water, and swimmers should take extra care before entering.

Even when the sea appears calm and inviting, this flag is a reminder that unseen risks may exist below the surface. This type of warning does not necessarily mean the beach is closed or unsafe at all times.