Bifurcation buoy - Definition - Purpose - Colour - Canada
A bifurcation buoy is used to mark?
The purpose of a bifurcation buoy is to mark the point where a channel divises in to branches. You may pass this buoy on either side (port or starboard side) when moving upstream. It's coloured with red and green bands. The main or preferred channel is shown by the colour of the top band.