Which buoy color marks the starboard side of a channel when approaching inbound?

• A. Green can buoy
• B. Red nun buoy
• C. Green spar buoy
• D. Red can buoy

Answer: (B)

When approaching inbound, the edge of the channel on your right is marked by red buoys. In U.S. practice, red marks are kept on the boat’s right side as you enter harbor, captured by the mnemonic Red, Right, Returning. A red nun buoy is the cone-shaped marker that specifically indicates the starboard boundary. The green can buoy marks the opposite side (port), so it would not indicate the starboard edge. Green spar buoy and red can buoy aren’t the standard starboard markers in this context.