What shape are nun buoys?

Nun buoys have a cone-shaped design, which is distinctive and serves a specific navigational purpose. The cone shape allows for more effective visibility and stability in water, making it easier for boaters to identify these buoys from a distance. Nun buoys are typically used to mark the edges of navigable channels and indicate the side that vessels should keep on their port side when navigating upstream. The pointed top enhances the buoy's ability to cut through waves and maintain its position in varying water conditions, thereby providing clear guidance to boaters.

This design is intentional, as it helps prevent confusion with other buoy types, such as can buoys, which typically have a different shape and color. Recognizing the shape and function of nun buoys is essential for safe navigation and understanding maritime markers.