During descent, what does a single line pull from the tender to the diver indicate?

• A. Going Down
• B. You have come up too far; go back down until we stop you
• C. Are you all right?
• D. Stop

Answer: (D)

A quick, single pull on the line from surface to diver is the stop signal. In a tethered descent, the tender uses the line to communicate safety cues, and a brief pull tells the diver not to descend any further at that moment. The diver should hold the current depth, ensure there are no hazards ahead, and wait for the next instruction before continuing. This keeps descent controlled and coordinated with surface conditions and the dive plan. Different signals or multiple pulls would be used to indicate resuming descent or other instructions, but a single pull is specifically a command to stop.