Sgurr nan Gillean forms one of the three northern Cuillin Munros along with Am Basteir and Bruach na Frithe. Sgurr nan Gillean is well seen from Sligachan from where the normal route of ascent starts. The main summit is a pyramidal peak with 3 main summit ridges. The west ridge leads via a high col to neighbouring Munro Am Basteir. The NE ridge is known as pinnacle ridge and makes for an excellent climbing ascent route if you have the required gear and know how to use it, The SE ridge is the normal route of ascent for the walker, this is joined from the steep coire headwalls of Coire Rhiabhach which seperate Sgurr nan Gillean from subsiduary peak Sgurr Bheag. All summit ridges require a lot of scrambling and a head for heights so make sure you are happy with this before you set out. This is particularly true for the summit where the exposure is quite overwhelming.
From the summit you get full panoramic views of the northern Cuillins and right out to the western seaboard.
There is the option of combining Sgurr nan Gillean with neighbouring Munros Am Basteir and perhaps even Bruach na Frithe this will just depend on how fit you are as the climbing is tough.
Sgurr na Gillean along with its neighbouring Munros is perhaps the image most people think of when they think of the Cuillins due to thier close proximity to the main road and Sligachan.