Why You Might See A Purple Flag Flying At The Beach. The Hidden Warning Most People Ignore — And What It Says About Dangerous Marine Life

Each color represents a different type of risk:

• Red Flag = High hazard conditions
• Yellow Flag = Moderate hazard conditions
• Green Flag = Low hazard conditions
• Purple Flag = Dangerous marine life present

These systems allow visitors to understand ocean conditions instantly without needing expert knowledge about tides, currents, or marine biology.

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