Cantabria is an autonomous community of Spain, containing one province (also called Cantabria). It borders to the east on the Basque Country (province of Vizcaya), to the south on Castile and León (provinces of León, Palencia and Burgos), to the west on Asturias, and to the north on the Cantabrian Sea (the Bay of Biscay that lies off its coast). Santander functions as the capital and Cantabria shares the National Park Picos de Europa (in the Cantabrian Mountains) with Asturias and León.