How can you determine if other boats can see you in low visibility?

Using navigation lights is crucial in low visibility conditions to ensure that other boats can see you. These lights serve as indicators of your presence and position on the water, particularly during dawn, dusk, or night-time operations. By following the established regulations regarding navigation lights, you help other boaters identify your boat's direction, type, and movement. This is essential for maintaining safety and preventing collisions, as visibility might be limited due to fog, rain, or darkness.

The other options do contribute to awareness in different ways, such as signaling with a horn to indicate your location or using reflective materials to be more visible. However, navigation lights are the standard and most reliable method recognized in marine law for visibility at night or in low-light conditions.