Once across river, head across field and climb to minor farm/forestry road. Turn left, cross river and climb on forestry track to T junction and turn left.
At next forestry junction turn right (it is the obvious way even though there are a number of tracks here).
Follow track to green forestry barrier. Turn right onto forestry track (Heol Tir-lan on OS map), cross cattle grid and turn left on tarmac minor road. Descent steeply on road, cross bridge and climb on road for approx 0.9miles and turn left up towards farm (Glyn-mercher-uchaf). Keep right of farm house through gate onto Restricted By-way. Follow restricted byway to farm (Heol Fawr). Note the byway marked on the OS map and actual path are different - follow the path it is very obvious.