I began my spotting career in Bristol and there was an alien world only a few miles away. Severn Tunnel Junction was a frontier point beyond which reigned the hordes of Class 37s, almost never seen in Bristol. Just a couple of miles further came the sight of Llanwern steelworks, resembling a portal into Hades. Then came Newport where you could stand on the platforms and watch the unending succession of coal and ore trains passing through. Further on was the lure of Woodham's at Barry, and the mysterious labyrinth of the Valleys where, it was rumoured, steam locos were still to be seen at work.