Which bay is located to the north of Spain?

The Bay of Biscay 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 the northern coast of Spain west to Cape Ortegal.

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

The southern end of the gulf is also called in Spanish "Mar Cantábrico" (Cantabrian Sea), from the Estaca de Bares, as far as the mouth of Adour river, but this name is not generally used in English. It was named by Romans in the 1st century BC as Sinus Cantabrorum (Bay of the Cantabri) and also, Mare Gallaecum (the Sea of the Galicians). On some medieval maps, the Bay of Biscay is marked as El Mar del los Vascos (the Basque Sea).

Volunteers and employees of Biscay Dolphin Research regularly observe and monitor cetacean activity from the bridge of the ships on the P&O Ferries Portsmouth to Bilbao route. Many species of whales and dolphins can be seen in this area. Most importantly, it is one of the few places where the beaked whales, such as the Cuvier's beaked whale, have been observed relatively frequently. This is the best study area in the world for beaked whales.