Isolated Danger Buoys - Sailing Markers

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Isolated Danger Buoys

Theory

Placed directly above a hazard such as a submerged rock or a wreck, but has navigable water all around it

Isolated danger buoys are placed directly above a hazard such as a submerged rock or a wreck, but has navigable water all around it. Unlike cardinal buoys, they can be passed either side.



Colour
Horizontal Black & Red stripes
Shapes
Conical, Pillar, Spar
Top Marks
Two black balls in a vertical line
Lights
White, 2 quick flashes with intervals of 5 seconds
Chart Symbol
Isolated Danger Buoy - Chart Symbol