ignore the flag – it’s there for a reason.
What Other Flags Mean (International Variations)
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The purple flag for marine pests is standard in the United States and parts of the Caribbean. But other countries have different systems.
Caribbean and Mexico: Purple often indicates dangerous marine life (similar to the US). Some resorts use purple for “extreme caution.”
Australia and New Zealand: Red and yellow flags indicate supervised swimming areas (between the flags). Purple is
