Travel by x24 bus (every 10 mins) to Cwmavon which will take 15 mins, then a linear walk back to Pontypool and the cars. This is the easiest section of the Challenge walk which will take place 2 weeks later and follows 6ml of the Brecon and Monmouthshire Canal
You can use the interactive controls to zoom in and out and to move around the map, or click on a marker for more info. (interactive map help)