Number | Description | OS Grid |
| Park in car park in Taf Fechan Forest just N of river | SO04241635 |
1 | Cross river over bridge then follow sketchy path SW to bridleway track | SO04081627 |
2 | Follow bridleway beyond forest. When it turns E, walk 100m NNW to start of ascent path. | SO02821806 |
3 | Cross stream and ascend steep path WSW to top of escarpment | SO02111780 |
4 | Follow path NNW by edge of Craig Fan Ddu to narrow ridge | SO01241968 |
5 | Continue NNW across ridge on path above Craig Gwaun Taf | SO00762043 |
6 | Follow edge of escarpment NNW towards Bwlch Duwynt col | SO00502074 |
7 | Cross narrow col and ascend NNE to Corn Du (873m) | SO00742134 |
8 | Descend E to col then climb NE to summit of Pen y Fan (2500ft+) | SO01202156 |
9 | Descend SE by path on Cwm Sere Ridge | SO01482131 |
10 | Descend ESE to just above col, where path divides | SO01882119 |
11 | Take right path and contour SE around slopes of Cribyn | SO02732040 |
12 | Continue on path turning ENE to reach 599m pass | SO03192057 |
13 | Ascend SE on path across slope of Fan y Big to start of plateau | SO03981967 |
14 | Continue E on path | SO04461968 |
15 | Follow edge of escarpment NNE then E to crossing of paths | SO05732060 |
16 | Ascend peat-hag terrain ENE onto Waun Rydd (2500ft+) . Unmarked highest point is 100m S of a modest cairn. | SO06212070 |
17 | Return to crossing of paths and ascend gently SSW on path | SO05732060 |
18 | Follow escarpment edge SSW to a stream crossing | SO05041922 |
19 | Continue SSE to start of descent of Craig y Fan Ddu ridge | SO05471835 |
20 | Descend steeply S on path to 460m contour then turn R crossing stream | SO05521774 |
21 | Follow sketchy path SW joining road and continue to a R turning | SO04951673 |
22 | Turn R and after 100m take left fork. Follow forest road back to car park | SO04241635 |