From the car, walk along the right-hand side of the road in the direction of Nant Gwynant, then go through a wooden kissing gate and bear right. Cross a wooden bridge, then follow the path signed toward Pen y Pass as it works around the hillside over rough, stepped ground. Keep right at a small junction, following the Pen y Pass sign, and finish through a second kissing gate at the car park.
At that end you meet the main mountain routes: left for the Miners' Track, right through the car park for the Pyg Track. Both are far longer summit walks and are in no sense extensions of this short path.