Guests often ask us where they can walk and see waterfalls and with all the rain we have had lately I decided to take a wander up Blaen-y glyn and the Caerfanell river, the stream that feeds the large Talybont Resivoir. This stream runs down hill through quite a steep gorge and over a series of about eight waterfalls varying in size from about two meters to about 15 meters. A walk of about an hour takes you to the most upstream waterfall from where you can either re-trace your steps back down stream or strike on into the Brecon beacons.
From Gliffaes, drive through Llangynidr and on to the village of Talybont, turn left over the canal, signed Talybont Reservoir and carry on right to the far end of the reservoir where, after crossing a small bridge, you will see a car park sign saying, ‘Waterfalls’. (map reference SO 065 171). Park here and go back on to the lane, cross the bridge and begin walking up stream on the obvious path, it won’t be long before you get to your first waterfall. There are several good picnic spots and for the more daring a swimming hole. I think the last fall is the best and from the top of the gorge you get good views of the central Beacons, which yesterday were covered in snow.
If you want to make a circular walk back to your car, carry on upstream to what was once a small building at map reference SO 059 186, cross the stream (so you are now on the west bank) and head up hill till you get to the path running through the tussock grass under the steep slope of Craig y Fan Ddu. Follow the path south towards the forestry, over the stile into the woods and keep going south. The track will bring you out at a another car park above the one you left your car at. Just before the gate on to the main road pick up the path downhill throught the woods to return you to your car.
All in all about 2 hours walk at a very reasonable pace.