What does a green buoy typically signify in navigation?

A green buoy is used in maritime navigation to indicate safe water and help boaters determine the channel's boundaries. Specifically, it signifies the left side of the channel when returning from sea, following the IALA buoyage system (International Association of Lighthouse Authorities). This system is vital for navigational safety, as it provides clear visual cues to mariners about where they should steer their vessels.

When navigating from the ocean into a port or harbor, boaters follow the channel markers to avoid hazards and ensure safe passage. The green buoy, typically marked with a number and sometimes a lateral design, signals that the deeper water is on the left side of the vessel, guiding the boater safely into port.

Options outlining safe anchorage, such as signifying a safe place to anchor or marking the end of a no-wake zone, do not accurately reflect the primary function of green buoys. Similarly, the description of a green buoy denoting the right side of the channel when returning from sea contradicts established navigation conventions. Understanding these symbols is critical for safe boating practices and ensuring compliance with maritime navigation rules.