Those who frequent the beach usually easily understand the meaning of the most common flags. The green flag indicates favorable conditions for entering the water, the yellow flag advises taking extra precautions, and the red flag warns of high-risk situations. However, there is another signal that often goes unnoticed and whose importance should not be underestimated: the purple flag .
Although it doesn’t mean the beach is closed or swimming is automatically prohibited, this sign serves a crucial preventative function. Its presence indicates that potentially dangerous marine life has recently been detected in the area , so increased vigilance is advised, and lifeguards should follow their instructions.

