Aids to Navigation
What are all those red and green things?
|1. -||1. Preferred Channel Marker, Red and Green Nun labeled with the letter "C" in this example . Because top color is red you would treat the marker as a red nun if you want to take the preferred channel.|
|2.||2. Lighted MOA (morse code alpha) fairway or safe water marker labeled with the letter G in this example. This marks center of channel and can be passed on either side. Light will flash morse code alpha one short and one long (di dah)|
|3.||3. USWMS regulatory buoy. In a danger area the danger would be printed in the diamond.|
|4.-||4. Lighted green "Can Buoy", port side channel marker returning from the sea. Flashing Green light every 4 seconds. Labeled with the number 1 in this example.|
|5. -||5. Unlighted "Nun Buoy" starboard channel marker when returning from the sea. Labeled with the number 2 in this example.|
|6.||6. Unlighted Can Buoy marks the left side of the channel returning from sea. Labeled with the number 3 in this example.
Also see The Coastal Navigation Course