Ontario Boating League logo.

Lateral Buoys (continued):

Pillar bouy chart symbol.

Chart symbols are not on the test.  But they are on your charts!   At right are symbol shapes.  They indicate what (size) of buoy to look for when underway; I.e. Pillar, Conical, Can, Spherical, Super buoy, or spar.  Colours will be shown according to the buoys' specific purpose.  Spars are small (hard to see) stick shapes on the water; Pillar & Super buoys are very large.

Welcome to our Website!
Updated December 4, 2011

content by David Holding.

Snapshots of work at sea

Starboard Bifurcation buoy:

The three different shape buoys shown at left - all mean the same thing.  These are;

  • used to mark the junction of two traffic routes,
  • has red and green horizontal bands,
  • may be passed on either side when proceeding upstream,
  • the colour of the top band indicates the main or preferred route. (if the top band is red, keep the buoy on your starboard side, when proceeding upstream,
  • will be lettered, no number.

Your Membership Benefits
Starboard bifurcation buoy.

Membership Form

Links to Helpful Sites

Ontario Boating League
David Holding
PO Box 5085
Penetanguishene ON
L9M 2G3

Emergency: (705) 528-9927

Port Bifurcation buoy:

Chart 2202 showing Bifurcation at Potato Island Channel, Georgian Bay. Port bifurcation buoy.

The three different shapes (pillar, can, spar) all mean the same thing; they're just different sizes;

  • used to mark the junction of two traffic routes,
  • has red and green horizontal bands,
  • may be passed on either side when proceeding upstream,
  • the colour of the top band indicates the main or preferred route.  (if the top band is green, keep the buoy on your port side, when proceeding upstream,
  • will be lettered, no number. [notice bifurcation can-buoy C at right.  GRG indicates green on top, red in the middle, green on the lower portion]

Fairway buoy:

The three different shapes all mean the same thing;

  • used to mark land-falls, channel entrances or channel centres, (indicates safe water),
  • has red and white vertical stripes,
  • it should be kept on your port side, when passing in either direction,
  • if equipped with a light, the light is white and flashing (Morse code letter A  (dot dash)
  • will be lettered, no number, [see MK at right]
  • (may) have a single red sphere on top.
Fairway buoy.
Fairway Buoy marking an approach to a land-fall route(s).

Isolated Danger buoy:

The two different shapes all mean the same thing;

  • coloured black with one red horizontal band,
  • may be used to mark natural dangers (such as small shoals), or obstructions such as wrecks,
  • is moored on, or above an isolated danger which has navigable water all around it,
  • will be lettered, no number,
  • if equipped with a light it is white and flashing (2 quick or 2 long flashes, then a period of darkness,
  • (may) have two spheres on top.
Isolated Danger buoy.