Special Buoys

The shape of special buoys is not significant. These buoys may be lettered, but they have no numbers. They may have yellow lights and retroreflective material of the same colour as the required markings. White buoys may display yellow material. The topmark on Cautionary, Scientific and Anchorage Buoys may be a yellow “X.”

Cautionary Buoy

  • Yellow in colour.
  • If it has a topmark, the topmark is a single yellow “X.”. Marks warning or danger areas for mariners, including firing ranges, racing courses, seaplane bases, underwater structures, or
  • areas wherethere are traffic separations or in which no safe-through channel exists. Displays identification letter(s).
  • If it carries a light, it will be a flashing (Fl) 4 s. yellow light.

Cautionary buoy

Anchorage Buoy

  • Yellow in colour.
  • Marks the perimeters of designated anchorage areas.
  • Consult charts for water depth.

Anchorage buoy

Reno Viola - Get you Pleasure Craft Operator Card

Keep Out Buoy

  • White in colour.
  • On both or opposite sides of this buoy, you will see an orange diamondthat has an orange cross inside of it. There is also an Orange horizontalband situated above and below each of the diamond symbols.
  • Marks an area where boats are prohibited. If it has a light, it will be a flashing (Fl) 4 s. yellow light.

Keep out buoy

Control Buoy

  • White in colour.
  • On both or opposite sides of this buoy, you will see an orange circle that has a black figure or symbol inside of it, which indicates the nature of the restriction in effect.
  • There is also a horizontal orange band situated above and below the circles.
  • Marks an area where boating is restricted.
  • If it has a light, it will be a flashing (Fl) 4 s. yellow light.

Control buoy

Hazard Buoy

  • White in colour.
  • On both or opposite sides of this buoy, you will see an orange diamond and an orange horizontal band below and above each of
  • the diamond symbols.
  • Marks random hazards such as rocks and shoals.
  • If it has a light, it will be a flashing (Fl) 4 s. yellow light.

Hazard buoy

Information Buoy

  • White in colour.
  • On both or opposite sides of this buoy, you will see an orange square and an orange horizontal band below and above each of the squares.
  • Displays, by words or symbols, information of interest.
  • If it has a light, it will be a flashing (Fl) 4 s. yellow light.

Information buoy

Diving Buoy

  • Marks an area where scuba diving or other such activity is in progress.
  • Is coloured white, and carries a red flag not less than 50 centimetres square.
  • On the flag there is a white diagonal stripe that extends from the tip of the hoist (portion attached to the flagpole) to the bottom of the fly.
  • (side opposite to the portion attached to the flagpole). If it has a light, it will be a flashing (F1) 4 s.
  • yellow light.

Diving buoy

Alfa (A) Flag

  • Means “I have a diver down, keep well clear and proceed at a slow speed.”
  • Blue and white in colour, with the fly section being blue.

Flag A - Diving

Swimming Buoy

  • White in colour.
  • Marks the perimeters of a swimming area. If it has a light, it will be a flashing (F1) 4 s. yellow light.

Swimming buoy

Scientific Buoy

  • May be yellow in colour.
  • Used to gather meteorological and other scientific data from the ocean.

Mooring Buoy

  • A mooring buoy is used for mooring or securing boats. Other buoys, such as navigational buoys should never be used to moor a boat.
  • Range Daybeacon
  • Consists of two or more fixed navigation marks situated some distance apart from one another and at different elevations.
  • The lining up of both marks indicates a recommended track for navigators. If it has a light, the light’s colour and characteristics will be marked on the chart.

Mooring buoy

Sector Light

  • A Sector light beam is divided into light sections of various colours.
  • Navigators can establish position by observing which colour of beam they are in.
  • Used to provide warning or a leading line. Consult the “List of Lights” and the Chart for the colours and boundaries of sector lights.