Which buoy is used to indicate the main channel with red and green stripes?

• A. Safe water mark
• B. Red/green stripes, indicates main channel
• C. Mooring buoy color
• D. Daybeacon definition

Answer: (B)

Red and green striped buoys are the main-channel markers. They mark the primary, safe path through hazards, and you should navigate between them to stay in the channel and through deeper water toward your destination. This pair serves as a clear visual cue that you’re in the established route for the waterway, guiding you to follow the marked corridor. Other aids have different purposes—Safe Water marks indicate open water all around, mooring buoys show where you can tie up, and daybeacons are fixed references used for positioning—so they don’t indicate the main channel in the same way.