37602 & 37604 pass Dartford Junction on 11 March 2000 with the Pathfinder Tours 1Z81 12:02 Victoria to Victoria (via Maidstone and Tonbridge) 'Medway Medicaster' railtour, just as 465196 and an unidentified classmate approach with the 12:02 (coincidentally!) Charing Cross to Dartford Connex service. The impressive brick building is a 1920s Southern Railway built electricity substation.