About Isolated Danger Marks
Isolated Danger Marks
Are crucial navigational aids designed to alert mariners to significant hazards in the middle of the water, such as submerged rocks, sunken wrecks, or underwater structures. These marks have a unique appearance that distinguishes them from other navigational aids, helping sailors quickly identify potential dangers in their path.
Isolated Danger Marks typically feature horizontal black and red stripes arranged in a vertical pattern. They might also have two black balls above each other. This distinctive pattern serves as a warning to mariners that there is a specific danger at that spot, and they should proceed with caution. These marks are often positioned directly over the hazard or as close as possible to its accurate location.
The purpose of Isolated Danger Marks is to safeguard ships and boats by clearly marking dangerous areas that might not be visible on the surface. Mariners rely on these marks to steer clear of the hazard while navigating through unfamiliar or treacherous waters, ensuring safe passage and preventing potential accidents.
Chart Symbol
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Lights: White, 2 quick flashes with intervals of 5 seconds