The best route I have ever done is this one. I started at the the north face car park of Ben Nevis and headed up the track. Once we had reached a point where path didn't exist we had to make our way up Carn Mor Dearg . Remembering that we needed our ice axes. Once at the top we headed over the arête which left us in a sticky situation with the wind. After this we made our way up to Ben Nevis and back down the tourist track. EASY Really!