The South Eastern main line is a major long-distance railway route in South East England, UK, one of the three main routes crossing the county of Kent, going via Sevenoaks, Tonbridge, Ashford and Folkestone to Dover. The other routes are the Chatham main linewhich runs along the north Kent coast to Ramsgate or Dover via Chatham and High Speed 1 which runs through the centre of Kent to the coast at Folkestone where it joins the Channel Tunnel. Rolling stock included: Class 375 Class 376 Class 395 Class 465 Class 466 Services include Charing Cross to Dover Priory ( Class 375) Cannon Street to Orpington ( Class 376, 465 or 466) Charing Cross to Sevenoaks ( Class 376, 465 or 466) and St Pancras International to Dover Priory ( Class 395)