What signals should you show if you are on a vessel 10' off land rendezvousing for crew change?

In the scenario where a vessel is positioned only 10 feet from land and is rendezvousing for a crew change, the appropriate signals to display are those related to restricted visibility. Under the COLREGs, vessels must signal their status when visibility conditions are limited, which includes situations where visibility is reduced due to fog, rain, or other environmental factors.

Displaying restricted visibility signals, which typically includes using sound signals such as a prolonged blast of the whistle at intervals, helps ensure that other vessels in the vicinity are aware of your presence and activities, particularly in conditions where they might not be able to see you clearly. This adherence to signaling protocols promotes safety and allows other navigators to take necessary precautions to avoid collisions.

While options such as grounding signals, anchored signals, and cargo transfer signals might have their own contexts and purposes, they do not apply to the specific situation of a vessel close to land for crew changes in limited visibility. Engaging in the correct signaling practice under restricted visibility, therefore, is essential for maintaining situational awareness and ensuring safety on the water.