What is the description of a diver's flag?

A diver's flag is specifically designed to indicate the presence of divers in the water, ensuring that nearby boats approach with caution. The proper diver's flag is red with a white diagonal stripe running from the top left corner to the bottom right corner. This design is universally recognized among recreational and professional divers, as well as boaters, to signify that there are divers below the surface.

The red background of the flag symbolizes alertness, while the white diagonal stripe serves to catch the attention of passing boats, highlighting that caution should be exercised in that area. This flag is an essential safety measure, helping to prevent accidents by making it clear that there are individuals under the water.

Other flags listed, such as the white flag with red stripes or the green flag with a yellow cross, do not serve the same purpose and are not recognized as diver's flags, emphasizing the importance of understanding and identifying marine safety signals correctly.