In Norway they're called fjords; in Brittany, abers; in Scotland, lochs; and in Galicia, rías. These inlets have been cut into the Galician coastline by the turbulent Atlantic Ocean pounding against its shores. Rías Altas is a relatively modern name applied to all the estuaries on the northern Galician coast, from Ribadeo (the gateway to Galicia on the border with Asturias) to A Coruña (the big Atlantic seaport of northwest Spain). The part that begins at Ribadeo, part of Lugo province, is also called Marina Lucense. Four estuaries form the Artabro Gulf: A Coruña, Betanzoa, Ares, and Ferrol. All four converge on a single point, where the Marola crag rises.