What is a key feature of the light displayed by a safe water buoy?

A safe water buoy is designed to indicate a navigational channel and is characterized by its unique signal to mariners. The key feature of the light displayed by a safe water buoy is a white light that may flash at intervals. This is an important aspect of the buoy's function, as the light helps to signal its position to vessels, especially in low visibility conditions like fog or at night.

The white light serves to distinguish safe water buoys from other types of navigational markers, which may use different colors and light characteristics. The ability of the light to flash at intervals provides additional information to mariners, helping them to understand the buoy's role and increasing situational awareness.

Safe water buoys are often unlighted or equipped with a white light but do not use colored lights that indicate hazards or specific navigational instructions, such as steady red or green lights, which have different meanings within the IALA Maritime Buoyage System. This distinctive signaling is crucial for safe navigation in busy waterways, guiding vessels safely through channels.