The Càrn Mòr Dearg Arête is a famous mountaineering route to Ben Nevis and is one of the best-known ridge traverses in Scotland. It is a long, exposed arête with sustained scrambling and significant exposure, especially in winter conditions. The route is not technically extreme, but it is serious because of its length, exposure, and the need for sure-footed movement. It is commonly treated as a classic alpine-style mountain route rather than a hiking path. The final section onto Ben Nevis involves the broad summit plateau, where navigation can be difficult in cloud.