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cardinal marks click to hear : cardinal marks

Buoys of standardized colors, topmarks and lights whose placement alone or in a pattern corresponds to the divisions of a compass.
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See cardinal marks in : french | spanish
North white light Northwest West Southwest safest water South danger Southeast East Northeast topmark

North click to hear : North

The north cardinal mark is composed of two topmarks with both tips pointing upward.

white light click to hear : white light

White flashing light whose flash pattern serves as a cardinal mark at night.

Northwest click to hear : Northwest

West click to hear : West

The west cardinal mark is composed of two topmarks placed tip to tip.

Southwest click to hear : Southwest

safest water click to hear : safest water

Navigable water is deep enough that it is safe to proceed.

South click to hear : South

The south cardinal mark is composed of two topmarks with both tips pointing downward.

danger click to hear : danger

Buoys signal shallow waters, a submerged object or an object posing a hazard to a boat or a ship.

Southeast click to hear : Southeast

East click to hear : East

The east cardinal mark is composed of two topmarks placed base to base.

Northeast click to hear : Northeast

topmark click to hear : topmark

Metal cone-shaped part atop a buoy that serves as a navigation aid during the day; its position signifies various meanings.