The normal route is from the pay and display car park of Ben An (sic) by the shore of Loch Achray. From there the signed path heads straight uphill in a north-northeasterly direction before picking up the course of a brook, the Allt Inneir, and heading north-northwest up to a low saddle (246 m). The path crosses the saddle heading northwest before picking up the course of another burn, the Allt na Cailliche, and following it steeply uphill below the crags of Ben A'an. Close to the source of the burn the path swings westwards and behind the west top of the hill onto a col, from which it is a short climb to the summit of the west top which is the destination for most hikers. There is no obvious path to the main summit.