Although one of the smaller Munros in the Arrochar Alps, Beinn Narnain, the “hill of notches”, provides a rocky and impressive aspect from Loch Long. On a good day, the summit provides spectacular views of the rest of the Arrochar Alps, particularly the Cobbler, and down Loch Long towards the Firth of Clyde and the Cowal Peninsula; Ben Lomond should also be visible to the east.
This route descends from the summit, linking the typical ascent of Beinn Narnain from Succoth on the shores of Loch Long with the Bealach a’ Mhàim, a three-sided bealach with other ridges leading to The Cobbler and Beinn Ìme. Therefore, an ascent of Beinn Narnain can easily be extended into a longer day, or the more direct route up the Cobbler extended to include Beinn Narnain before descending back to the loch.
The section of path itself is fairly short (roughly a kilometre), and runs roughly in an east-west direction from the summit of Beinn Narnain down its western slope to the bealach. The slope itself is steady going, without the mild scrambling of the approach from Succoth, but can boggy towards the bottom. Once the bealach is reached, the path meets the main path leading to Beinn Ìme to the north, or towards the Cobbler to the South.