The Bluebell Railway is South of London, in the beautiful Sussex Weald near the Ashdown Forest. Full details of access to the railway are here . When the extension to East Grinstead is open, it will be 11 miles. It's actually 731 yards long. The railway runs steam trains on nearly 250 days each year.
Full details are in the timetable .
Yes, except on Christmas day. At Sheffield Park, the loco sheds, museum and shop are open between 11am and 4pm. The Loco Roster shows the intended locomotives, but may be subject to change, and can only be a rough guide. The locomotive workshops are not generally accessible, but this only accounts for usually three locos. All the station staff, drivers, firemen and guards, and many other staff carrying out restoration and maintenance.