The Balearic Sea (endotoponym: Mar Balear in Catalan and Spanish) is a body of water in the Mediterranean Sea between the Balearic Islands and the mainland of Spain. The Ebro River flows into this small sea.
The Balearic islands are divided into two groups: Gimnesias in the northeast, and Pitiusas in the southwest.
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 Sant Antoni, Valencian Community () to Cape Berberia, the Southwest extreme of Formentera (Balearic Islands).
On the Southeast. The South Coast of Formentera, thence a line from Punta Rotja, its Eastern extreme, to the Southern extreme of Cabrera, Balearic Islands () and to Illa de l'Aire, off the Southern extreme of Menorca.
On the Northeast. The East coast of Menorca up to Cap Favaritx () thence a line to Cape Sant Sebastià Catalonia ( ).