Pre-1994, the non-stop 'boat trains' would have left from Victoria, but between Bromley & Orpington they usually switched to the line via Tonbridge & Ashford used by trains out of Charing Cross, known as Boat Train Route 1. If you use the classic route from Charing Cross to Dover as ...
The lines merge again at Shortlands and head into Kent, crossing the South Eastern Main Line (which serves other London termini such as Charing Cross or Cannon Street) and the main line between Ashford and Swanley. Between Farningham Road and Longfield, the Chatham Main Line crosses the junctio...