Bay of Biscay

Bay of Biscay
Spanish coastline
Map of the Bay of Biscay
Bathymetric map of the Bay of Biscay
Location	Western Europe and Southern Europe
Coordinates	45°30′N 04°24′W / 45.500°N 4.400°W / 45.500; -4.400
Type	Gulf
Ocean/sea sources	Atlantic Ocean
Basin countries	France and Spain
Max. length	593.7 km (368.9 mi)
Max. width	511.1 km (317.6 mi)
Surface area	223,000 km2 (86,000 sq mi)
Average depth	1,744 m (5,722 ft)
Max. depth	4,735 m (15,535 ft)
Water volume	389,000 km3 (93,000 cu mi)
Salinity	35 g/L

The Bay of Biscay (/ˈbɪskeɪ, -ki/ BISS-kay, -⁠kee) is a gulf of the northeast Atlantic Ocean located south of the Celtic Sea. It lies along the western coast of France from Point Penmarc'h to the Spanish border, and along the northern coast of Spain, extending westward to Cape Ortegal. The southern area of the Bay of Biscay that washes over the northern coast of Spain is known locally as the Cantabrian Sea.

The average depth is 1,744 m (5,722 ft) and the greatest depth is 4,735 m (15,535 ft).^[1]