Beach safety flags use standardized colors to inform swimmers about ocean conditions, with green indicating calm waters, yellow warning of moderate hazards, and red signaling dangerous surf.
Unlike flags for physical water hazards, a purple flag specifically warns beachgoers about dangerous marine pests such as jellyfish, stingrays, or sea sea lice lurking in the area.
This distinct biological warning gives visitors the chance to take proper precautions, such as wearing water shoes or staying out of the water entirely to avoid stings.
Understanding flag colors reminds us that ocean safety involves monitoring both environmental surf conditions and the sea creatures sharing the water.
