Park at the Bealach na Bà viewpoint car park.
(S/E) Cross the road and follow it for about 100 metres in a south-easterly direction, starting on the right with your back to the car park.
(1) Follow the path up to the left and head towards the antenna.
(2) From there, the route is no longer defined except in a few places. Head to the left of the antenna and make your way through or over the rocks and vegetation along the ridge. A few cairns can be seen and used for guidance. You need to watch your step, but the hike is not particularly difficult.
(3) At the tip of the ridge, enjoy the panoramic view, turn around and take (more or less) the same route back to (S/E).