Okay this is not really a walk at all. It is however instructions of how to get to The Boar's Head in Brysadler from Pontyclun train station. The Boar's head is one of the best pubs in south Wales and no one knows about it. It has up to 8 guest beers on at any one time, open fires and a nice cosy atmosphere. It is also close enough to a train station that it is possible to have an evening out here in the week. I can recommend their curry and a pint night on Wednesdays.
Take the Maesteg train from Cardiff Central (normally platform 3). At the time of writing these leave at 16:18, 17:21 and 18:12. You'll need to buy a return ticket to Pontyclun. Get off at Pontyclun which is the first stop. Leave the train station (don't go over the foot bridge) and turn right. Follow the road over the bridge (which makes a very satisfying clucking noise when cars drive over it). Carry on down the road as it goes into an industrial estate. At the end of the road there is a narrow footpath on the right between two high metal fences (photo). At the other end of the alley turn right down the wide road. Go straight on at the roundabout and then turn left to see the front of the pub (photo).
For the return trip retrace your steeps. Trains leave Pontyclun Station at around five to the hour.