What should a vessel do when navigating in restricted waters with a deep draughted vessel nearby?

When navigating in restricted waters with a nearby deep draughted vessel, reducing speed and ensuring safe passage is the most prudent course of action. Deep draughted vessels require more water to navigate safely, especially in areas with limited depth. By reducing speed, the responding vessel can maintain better control and assess the situation more effectively, thereby minimizing the risk of grounding or collision.

In restricted waters, where space is often limited and maneuverability can be significantly affected, maintaining a safe speed is crucial for allowing sufficient reaction time. It also helps to ensure a smooth passage without creating wakes that could adversely affect the nearby vessel, especially if it is operating close to its draft limits.

Moreover, ensuring safe passage entails careful observation of the surroundings, understanding the movements of both vessels, and being prepared to take additional measures if necessary, such as altering course or communicating with the other vessel. This proactive approach contributes to overall safety during navigation in congested or restricted waterways.