The Convention Area (Article 4) covers a sizeable part of the high seas of the South East Atlantic Ocean. It covers all waters beyond areas of national jurisdiction in the region bounded by a line joining the following points along parallel of latitude and meridians of longitude: beginning at the outer limit of waters under national jurisdiction at a point 6° South, thence due west along the 6º South parallel to the meridian 10° West, thence due north along the 10º West meridian to the equator, thence due west along the equator to the meridian 20° West, thence due south along the 20º West meridian to a parallel 50° South, thence due east along the 50º South parallel to the meridian 30° East, thence due north along the 30º East meridian to the coast of the African continent (Map).