Sequential numbers appear sometimes on channel buoys
Red cone-shaped buoys typically have numbers written on them in white or black. These numbers usually indicate relevant navigational information, such as the channel designation or the distance to a specific point.
These cone-shaped buoys are always marked with red markings and even numbers. They mark the edge of the channel on your starboard (right) side when entering from the open sea or heading upstream.
A red cone shaped buoy is also known as a nun buoys and is marked with even numbers. Red cone shaped buoys are used to mark the left side of a channel waterway. They indicate that the boat is exiting the harbor and entering open waters.
Like cans, they are cylindrical.
A boat should cruise between a green and red buoy. The red buoy will always be located on the right side of your boat. Red buoys will always mean , returning, red, and right. There will be a number on a red buoy that will give the chart location. The numbers will always be even.
yes
yes
Red buoys have even numbers and red lights; green buoys have odd numbers and green lights.
yes
The left edge of a navigation channel as you are heading in.
Red with even numbers