A circular walk looping below the Upper Neuadd and Talybont reservoirs to Tor-y-Foel. Back via Carn Pica, Fan-y-Big, Cribyn, Pen-y-Fan, Corn Du and Y Gyrn. Fantastic views of the central Beacons peaks
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)