Between the Islas Baleares and the coast of Spain, bounded:
''On the Southwest.'' A line from Cape San Antonio, Spain () to Cabo Berberia, the Southwest extreme of Formentera (Islas Baleares).
''On the Southeast.'' The South Coast of Formentera, thence a line from Punta Rotja, its Eastern extreme, to the Southern extreme of Isla Cabrera () and to Isla del Aire, off the Southern extreme of Minorca.
''On the Northeast.'' The East coast of Minorca up to Cap Favaritx () thence a line to Cabo San Sebastian (Spain) ().