There is a surfaced road/track heading north from the steep minor road at SH578416 and there is limited parking on the grassy verge just before it or more higher up at where the road starts to drop. The road shows up better on the 1:50000 landranger than on the 1:25000 but leads to a farm (Tai Cochion) at SH581432. From here you can follow the wall northwards to the summit with only a small amount of gorse and a couple of walls to negotiate. The summit is the northerly one of the two cairns.
(2 hours, 4 miles, 1300’ of ascent)