What should be said in the secondary hail?

In a secondary hail, the most appropriate statement is to inform the vessel that it is steering into a dangerous area. This communication serves as an important safety measure, as it alerts the vessel's crew to the potential hazards ahead and gives them the opportunity to take corrective action. By clearly indicating the danger, you are helping to prevent accidents and protect lives and property at sea.

Addressing the situation with urgency can be critical in maritime operations, especially in restricted or hazardous waters. Ensuring that the crew is aware of potential threats is essential for maintaining safety on the water.

The other options, while related to maritime communication and safety, do not effectively convey the immediate dangers that the vessel may be facing in a secondary hail context.