Both A and B walks follow the Calderdale Way from Todmorden to Hebden Bridge.

The A walk is around 12 miles with 2400' of ascent and is the blue line on the maps and on the route gpx (which you can view on a 1:50k map with osala.org) Map 1 Map 2

The B route is a shorter version of around 8 miles which continues into Hebden Bridge where the A route turns north to Heponstall.

The coach usually parks at the railway station which is at the bottom right of this streetmap.