This does not automatically mean the beach is closed.
Instead, it means swimmers should use extra caution because marine pests or venomous sea creatures may be nearby.
Common marine hazards include:
Jellyfish
Stingrays
Sea lice
Portuguese man o’ war
Sea urchins
Fire coral
Venomous fish
Occasionally sharks
The goal of the purple flag is awareness — not panic.
The Beach Flag Warning System Explained
Understanding beach warning flags can dramatically improve ocean safety during vacations.
Flag Color Meaning What It Means for Swimmers
Green Low hazard Calm conditions
Yellow Medium hazard Swim cautiously
Red High hazard Dangerous surf and currents
Double Red Water closed No swimming allowed
Purple Dangerous marine life Marine pests present
