Followed by more on the iron industry:
www.bbc.co.uk
![www.bbc.co.uk](https://ichef.bbci.co.uk/images/ic/1200x675/p0fmhv67.jpg)
BBC One - Weatherman Walking, Series 13, Clywedog Valley Trail
Weatherman Derek Brockway walks the Clywedog Valley Trail in north Wales.