What action should you take when you see navigation lights on a vessel?

When you see navigation lights on a vessel, the correct action is to alter your course to avoid collision. Navigation lights are critical for indicating the position, heading, and status of a vessel, especially at night or in low visibility conditions. Understanding these signals helps you assess the other vessel's movement and intentions.

By altering your course, you are taking proactive measures to ensure safety on the water. This approach is in line with maritime navigation rules, which prioritize avoiding collisions. When you identify the navigation lights, they inform you about the vessel's direction and whether it is moving toward or away from you. If you maintain your course or approach the vessel closely without adjusting your path, you risk creating a hazardous situation that could lead to a collision.

In sum, altering your course to avoid a potential collision demonstrates a clear understanding of safe navigation practices, promotes safety on the water, and adheres to established maritime regulations.