What is the topmark configuration for a South Cardinal Mark?

The topmark configuration for a South Cardinal Mark is represented by two black cones, one above the other, pointing downward. This configuration is crucial in maritime navigation as it provides essential information to mariners about the position and direction of safe passage around hazards.

In the IALA Maritime Buoyage System, each type of buoy is designed to convey specific navigational meanings through distinct shapes and colors. The South Cardinal Mark, by specifically using two cones pointing downward, indicates to vessels that they should keep to the south of the mark. This visual cue is particularly significant when navigating in areas where hazards or shallow waters exist, as it clearly delineates safe navigation routes.

Understanding the implications of this configuration enhances a mariner's ability to interpret buoy markings properly, ensuring safe navigation in waters marked by cardinal buoys. The design and orientation of the topmark provide immediate visual indications, making it easier for crew members to quickly recognize necessary navigational actions.