Microsoft has announced completion of the Marea undersea cable, which stretches 4,400 miles between Virginia, and Bilbao, Spain. A joint project of Microsoft, Facebook and Telxius, the cable lies more than 17,000 feet below the ocean's surface. It is the first cable to link Virginia and Spain. The Bilbao terminus provides access to network hubs in Africa, the Middle East and Asia. Marea is located several miles south of the current connection points between the U.S. and Europe, for protection against natural disasters.