What signal should a vessel make when at anchor?

When a vessel is at anchor, it is required to display a white light that is visible all around. This signal serves several important purposes: it allows other vessels to see the anchored vessel during nighttime or in low visibility conditions, thereby preventing potential collisions. The white light must be placed in a way that it is clearly visible from all angles, ensuring that other navigators can easily identify the vessel's position.

Displaying this light is a critical safety measure that aligns with maritime navigation rules, which are designed to enhance situational awareness on the water. By making the anchored vessel visible, it communicates to other vessels that it is stationary, allowing for safe navigation in its vicinity. This requirement helps promote overall safety in maritime activities, particularly in busy or confined waters.