What does an all-round white light indicate when visible?

An all-round white light is a navigational light that can be viewed from all directions. This feature is vital for vessels to communicate their presence and operational status to others on the water, especially in low visibility conditions or at night. When a boater observes an all-round white light, it signifies that the vessel is either at anchor, moored, or possibly engaged in other activities that require being stationary.

Given its capability of being detected from every direction, the all-round white light serves as an important safety and identification measure in marine environments, helping to prevent collisions and allowing for safe navigation around the vessel.