What does a vessel with a single white light visible from all directions indicate?

A vessel displaying a single white light that is visible from all directions indicates that it is anchored. This signaling is part of maritime navigation rules which stipulate how vessels should present themselves when not in motion. An anchored vessel must show a white light to make its presence known to others, ensuring safety and preventing collisions in the waterway.

In contrast, a vessel that is under way would exhibit navigation lights that indicate it is moving, not just a single white light. A fishing vessel typically has additional specific lights to signify its activity, which helps other vessels identify its operations. A vessel restricted in its ability to maneuver must display specific signals that communicate its limitations, which also differ from just showing a single white light. Understanding these signaling systems is essential for safe navigation and awareness on the water.