From the south, the two main approaches to the Lairig Ghru follow the Glen Lui Route or the Glen Dee Route. These two routes come together soon after crossing the imaginary line between Carn a' Mhaim and The Devil's Point creating the first waypoint. Soon after this coming together, the track splits again with the left-hand (roughly NW) branch leading to the Cairngorm Club footbridge across the River Dee towards Corrour Bothy and the mountains to the west of the Lairig Ghru.