Sgurr Nan Coireachan is most westerly Munro in the range and forms part of the Glenfinnan Horseshoe, a circular route taking in 2 Munros. The walk circles round Coire Thollaidh the source of the River Finnan. Sgurr Nan Coireachan has 3 distinct ridges running west, south and east. The west ridge winds down to subsidiary peak Meall Garbh. The south ridge is the normal ascent/descent route leading back to Glenfinnan. The East Ridge leads to Sgurr Thuilm over long a rocky knobbly ridge passing several subsidiary peaks.
As said Sgurr Nan Coireachan is normally climbed along with Sgurr Thuilm from Glenfinnan, however there is no reason the hill cannot be climbed from other directions. There is another access point at the head of Loch Arkaig to the north east or you can come in from the north through the rough bounds of Knoydart if you really want to make an expedition out of it.
The Glenfinnan horseshoe is one of the better walks in Scotland and you should definitely have a good day on hills.