The final, most easterly sister, Beinn Fhada ('long mountain'), joins the Bidean nam Bian massif at the summit of Stob Coire Sgreamhach.

The steep rough path up from Glen Coe skirts a wooded ravine, and is a popular short walk (around 4 kilometres or 2+1⁄2 miles in total), though it involves a river crossing and some rocky sections.

From here, turn left to climb Stob Coire Sgreamhach which lies only about 0.5 km to the southeast, or right to traverse along the cliff edge towards the summit of Bidean.

[5] All of the above routes start from Glen Coe and go through the corries running between the Three Sisters, and may thus be combined to allow a traverse of the mountain.

On 19 January 2013 four people were killed in an avalanche close to Church Door Buttress on the north side of Bidean nam Bian.