The Eurostar network from the United Kingdom is centered on London St Pancras International and the Channel Tunnel rail link. In Britain, trains use High Speed 1 between London and the tunnel portal near Folkestone. International corridors continue to Paris Gare du Nord, Brussels Midi, Lille Europe, Rotterdam Centraal, and Amsterdam Centraal. Key operational stations include London St Pancras International, Ebbsfleet International for limited operational use, Ashford International for limited operational use, Paris Gare du Nord, Brussels Midi, Lille Europe, Rotterdam Centraal, and Amsterdam Centraal. Eurostar services are high-speed international passenger trains with reserved seats and terminal-based border controls.