Monmouthshire Railway Society 'The Afon Llwyd' railtour. As the Six Bells website says 'This tour started from Cardiff, worked to Newport, then visited Hafodyrynys, Blaenavon Furnace Sdgs, and Glascoed R.O.D. (where they weren't expecting us and the train was surrounded by armed soldiers!). There was also a trip over the steeply-graded NCB line from Abersychan and Talywain to Blaenersychan colliery in NCB vehicles converted from 10-foot wheelbase freight vans and worked by an industrial Andrew-Barclay 0-6-0 tank loco'.