A Junction day beacon marks a junction where it is safe to proceed either to port or to starboard. They are diamond-shaped with a red border.
The starboard daybeacon has a red diamond with a red triangle inside. They should be kept to one’s starboard side when proceeding in an upstream direction. A starboard-junction day beacon marks the junction of two channels and may be passed on either side.
The port daybeacon has a a red diamond with a green square inside. They should be kept to one’s port (left) side when proceeding in an upstream direction. A port-hand day beacon identifies the port (left) side of a channel or hazard and must be kept on the left side when proceeding upstream.
Day Beacons are not buoys. They are affixed to a post, tree, rock, bridge support, etc.
They are similar to lateral junction buoys, they mark on which side they may be safely passed and are dependent on whether one is proceeding in an upstream or downstream direction.
To learn more about the different buoys and markers that can be found on the waters in Canada.