The Perthus Tunnel is a twin-bore railway tunnel between France and Spain under the Eastern Pyrenees, built as part of the high-speed railway line Perpignan-Figueres. It has made possible the implementation of direct high-speed trains connecting the two countries' railway systems since December 2013, linking the Spanish AVE network with the French TGV. The tunnel is named after the nearby border town of Le Perthus.