Three years after a study earmarked five disused Welsh railway tunnels for reopening as cycling and walking routes, one is now in use and work is under way to open two much larger projects by 2021. What has happened to make the dream of many move closer to reality? Tregarth tunnel in Bethesda reopened in May last year, after four months of work and at a cost of £430,000. Known locally as Tynal Tywyll - Dark Tunnel, in English - it now forms part of a north Wales coast to Snowdonia path.
Is it full steam ahead for reopening Wales' disused railway tunnels for walking and cycling?