Harbor floaters are buoyant objects that are used to mark the boundaries of a harbor or other body of water. BUOYS are typically used for this purpose, as they are designed to float on the surface of the water and can be seen from a distance. They are often brightly colored and have reflective surfaces to make them more visible. BUOYS are also used to indicate the presence of hazards, such as rocks or shallow areas, and can be used to provide navigational information.