Which buoy is used to mark the edge of safe passage?

The safe water buoy is specifically designed to indicate the limits of safe passage in navigable waters. This type of buoy is generally white and can be identified by a red spherical topmark. It serves to mark the centerline of a channel or provide guidance in open waters, allowing mariners to navigate safely. Safe water buoys can also be used to denote navigable waters that have safe transit, particularly in areas where the navigational depth fluctuates. These buoys are often positioned in locations where they can signal that the water is clear and safe for vessels to navigate, thus assisting in safe passage. The significance of a safe water buoy lies in its crucial role in maritime navigation, ensuring that vessels remain in safe regions away from hazards.