What type of navigation light is located at the stern of the vessel?

The navigation light located at the stern of a vessel is an all-round white light. This type of light serves a crucial role in ensuring the visibility of the vessel from all angles, particularly during night operations or in low-light conditions. It helps other vessels identify the presence and orientation of the vessel, as the stern light indicates that the vessel is facing a certain direction.

All-round white lights are typically required for vessels that are at anchor or under sail, as they provide a clear signal of the vessel's position and prevent potential collisions. While red and green lights are used to indicate port and starboard sides, respectively, they are not designed for the stern. The blue light is generally associated with specific types of vessels, such as law enforcement or emergency response, but does not serve the general purpose of a stern navigation light.