National Cycle Route 49
21.13 miles (34 km)
This signed Sustrans cycle route runs from Abergavenny to Newport along the Monmouthshire and Brecon Canal.
It's a lovely easy ride following the canal towpath past Pontypool and Cwmbran for a distance of about 23 miles.
See the cycling video below for an idea of what to expect on the route. Scroll down further for the full gpx file.