Havana (Spanish: La Habana (help·info), IPA: [la aˈβana], officially Ciuad de La Habana, is the capital city, major port, and leading commercial centre of Cuba. The city is one of the 14 Cuban provinces. The city/province has 2.1 million inhabitants, and the urban area over 2.6 million, making Havana the largest city in both Cuba and the Caribbean region. The city extends mostly westward and southward from the bay, which is entered through a narrow inlet and which divides into three main harbours: Marimelena, Guasabacoa, and Atarés. The sluggish Almendares River traverses the city from south to north, entering the Straits of Florida a few miles west of the bay.