What does a green buoy indicate?

A green buoy signifies the left side of the channel when entering from the sea. This is based on the "barely" boating convention known as the IALA system, which governs the markings used on navigable waterways. According to this system, mariners will encounter red buoys on their right side when returning to port, and green buoys will be on their left side. This convention aids in safe navigation and helps to clearly mark the channel for boaters, ensuring they maintain proper course and avoid hazards.

The other responses pertain to different navigational concepts that do not accurately describe the function of a green buoy in this context. Understanding buoy colors and meanings is crucial for safe boating practices and navigation, so familiarity with these conventions is essential for anyone operating a vessel.