Which flag is flown when divers or demolition personnel are in the water?

The flag that is flown when divers or demolition personnel are in the water is the Alfa flag. This flag, which is blue and white, serves a crucial safety purpose by signaling that there are divers operating in the water. It is an international maritime signal flag that communicates the presence of underwater activity to nearby vessels, alerting them to exercise caution and maintain a safe distance to ensure the well-being of the divers.

The Alfa flag is particularly important because it not only enhances the safety of divers but also helps prevent potential accidents in busy waterways. Other flags serve distinct purposes; for instance, the Bravo flag signals the presence of explosive materials or operations, while the Delta flag indicates a diver is in the water and the area is restricted, but does not specifically convey the presence of divers as the Alfa flag does. Understanding these signals is essential for ensuring safety during maritime operations, particularly in environments where divers or demolition personnel may be at risk.