The divers-down flag or device used in Florida consists of a red background with a white diagonal stripe running from the upper left corner to the lower right corner. This visual signal indicates that divers are currently underwater in the immediate vicinity. Its purpose is to alert boaters and other watercraft operators to exercise caution and maintain a safe distance.
The display of a divers-down flag is legally mandated in Florida whenever diving or snorkeling activities are underway. This requirement significantly enhances diver safety by informing surface traffic of their presence. Historically, the flag has evolved to become a universally recognized symbol within the diving community, promoting awareness and preventing potential accidents involving watercraft. Failure to display the flag can result in penalties.