Definition

A buoyage system generally used to indicate dangers where the COAST is flanked by numerous ISLANDS, ROCKS and SHOALS as well as to indicate dangers in the open sea. In this system the BEARING (TRUE) of the MARK from the danger is indicated to the nearest CARDINAL POINT. A system of BUOYAGE in which the aids are assigned shape, colour, and number distinction in accordance with location relative to the nearest OBSTRUCTION. The CARDINAL POINTS delineate the sectors for buoy location.