It forms part of a group of hills known (unofficially) as the Arrochar Alps, and is a Munro.

The most commonly used route starts by climbing directly up the hillside, following a line of concrete blocks that were originally supports for a cable railway used during the construction of watercourse diversions forming part of the Loch Sloy hydro-electric scheme[2] (Until the construction of new path, this was also the route towards The Cobbler).

Where the concrete blocks cease, the path continues up Beinn Narnain's craggy south ridge.

The route bypasses some impressive and, when shrouded in mist at least, apparently almost impassable crags – "The Spearhead" – by means of a steep gully immediately before the summit.

The final stages of the climb include some mild exposure, but this should not intimidate a hillwalker of even limited experience.