From Ambleside head towards Skelwith Bridge then, at the junction, take the A593 and park in the car park at the south end of Yew Tree Tarn Lake (S).
Go back heading north on the trail which is parallel to the road, cross at the southern edge of the lake (1). Walk along the left bank then start a good climb to the top of Holme Ground (2).
Walk downhill through the pasture then the forest heading to houses in Stang End (3). Then head east on a paved road leading to a junction on Cumbria Way (5).
Leave Cumbria Way on the right, and the road to take the track in front which rapidly heads south-est. Get to the junction which leads to Black Crag Peak (6). Pass the gate and go left to get to the top (7).
Take the trail with cairns to the left, then follow a track to the right leading to a junction. Veer left getting to the stream that flows into The Tarns Lake (8).
Follow the west bank along the lake to the left. Get to the stream outfall (9), follow the well-maintained but steep slope to the car park.