Baleraic islands are divided into 2 groups : Gimnesias in the North, and Pitiusas in the South-West.
The International Hydrographic Organization defines the limits of the Balearic Sea as follows:
Between the Islas Baleares and the coast of Spain, bounded:
On the Southwest. A line from Cape San Antonio, Spain (38°50′N 0°12′E / 38.833°N 0.200°E / 38.833; 0.200) 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 (39°07′N 2°54′E / 39.117°N 2.900°E / 39.117; 2.900) and to Isla del Aire, off the Southern extreme of Menorca.
On the Northeast. The East coast of Menorca up to Cap Favaritx (40°00′N 4°14′E / 40.000°N 4.233°E / 40.000; 4.233) thence a line to Cabo San Sebastian (Spain) (41°54′N 3°10′E / 41.900°N 3.167°E / 41.900; 3.167).