Distance 23.3km (14½ miles) Total ascent 740m Time 7.5 hours Start/finish Upper Blaen y Glyn car park (SO056175)
Terrain Reasonable tracks across open moorland. Some care needed passing through disused quarry. Steep climbs up on fairly distinct footpaths.
Maps OS Explorer (1:25,000) OL12 and OL13, Harvey Superwalker (1:25,000) Brecon Beacons West and Brecon Beacons East