4.2 Daymarks, Range Lights, and Leading Lines
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- Daymarks: Daymarks are navigational aids that are visible during daylight hours. They are often located on land and have unique shapes, colors, or markings to indicate their purpose. Daymarks can provide information about channels, hazards, or specific routes.
- Range Lights: Range lights are a pair of navigational lights positioned in a way that, when aligned, guide vessels along a safe and predetermined course. These lights are typically different in color or character, making it easier for mariners to recognize when they are in alignment.
- Leading Lines: Leading lines are visual references, such as natural or man-made features, that align to form a defined path through a waterway. These lines help mariners navigate safely through channels or avoid hazards. Leading lines are often used in combination with range lights to provide additional guidance.