Module 15 - Restricted Visibility

Navigating in Fog

Fog is one of the most dangerous conditions for small-craft sailors. Visibility can drop to metres with little warning. Your ability to see hazards, other vessels, and navigation marks is severely reduced, and you may not be seen by others.

If fog is forecast, seriously consider whether the passage is necessary. If you are caught in fog at sea, take immediate precautions.

  • Fog can arrive suddenly with little warning
  • Consider postponing passage if fog is forecast
  • Take immediate action when visibility drops

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