What should you raise while conducting operations with a diver in the water?

Raising the Alfa flag is a critical safety measure when conducting operations with a diver in the water. The Alfa flag, which is blue and white, serves as a visual signal indicating that divers are in the water and that vessels should keep clear of that area. This helps ensure the safety of both the divers and surrounding vessels by raising awareness of the potential dangers present.

By signaling with the Alfa flag, it communicates to other ships that they must proceed with caution, thereby preventing accidental interference or accidents in the vicinity where divers are working. This practice is part of standard maritime protocol to enhance safety during diving operations.