Foel Cwmcerwyn is the highest peak in the Preseli hills of West Wales. The views can be spectacular and on good days you can see as far as Ireland.
Park at the Old post office in Rosebush (Sat Nav SA66 7QU). Use OS leisure map 35. It can be muddy so dress appropriately.
Leave the car park and turn left. Walk down the lane past the cottages and then the road quickly becomes a track. Go through a gate and follow the track where you will soon enter the woods and start to climb. When the track starts to go around a long right-hand bend, you pass two electric poles on your left.
The track bears left, ensure you look out for a narrow path forking left across a stream, take care here or you can miss this turning. Follow the narrow path and cross over the stream. This path can be very wet sometimes you are not sure if it is a stream or a path. Soon you exit the wood following a fence on your left and climb until you reach another track coming from your right. Turn left and follow upwards to a fork in the tracks.
Take the left fork and climb until you again reach another fork in the tracks. Fork left onto a narrow path that climbs through the trees to a gate that passes onto the open mountain at Bwich Pennant.
Go through the gate and go right in an easterly direction onto a path that runs parallel to the forest. You are now on the Preseli Ridge known as Pilgrims Way.
Follow the ridge until you reach Pen Cisty where you turn right up a steep hill following the fence on your right on a faint track. Follow this over a stile onto a narrow path that heads in a southerly direction across open mountain until you come to Foel Cwmcerwyn at 536mtr.
From here head down hill in a south westerly direction aiming for a gate at the corner of the forest.
Go through the gate and follow the path until you reach another gate. From here the path widens and starts to improve. As the track leaves the forest look out for a small stile and footpath sign going to the right, to a Farm. Follow this path across the fields above the farm, go though the gate and head down the hill passing between the farm buildings until you reach the road.
At the road turn right and within a few yards you are back at Rosebush.