Wondering about walking the Taff Trail from Cardiff.What kind of accommodations are along the route?
Quite frankly I would not bother as there are far better places to go in Wales. From north Cardiff to Merthyr you are basically walking up a valley that is densely populated due to it being a former coal mining area. The towns are miserable and the scenery is far from being attractive. It is only when north of Merthyr that the Taff Trail passes through the scenic Brecon Beacons National Park. The Brecon Mountain Railway can be used in this area and if you wish to continue walking the Taff Trail, I would suggest that you get off the train at the terminus at Torpantau and start trekking. (You may find accommodation in Talybont-on-Usk. From here, you could catch the infrequent bus to Brecon or walk along the canal towpath to Brecon). Alternatively, from Torpantau, it possible to continue walking NNW and join a rough road to Brecon or even climb Pen-Y-Fan - the highest mountain in southern Wales). See map:>https://firstname.lastname@example.org,-3.3466994,26476m/data=!3m1!1e3!5m1!1e1