Most guide books recommend climbing Beinn a' Chroin along with the adjacent Munro of An Caisteal. This walk starts from the A82 road at grid reference and climbs An Caisteal first before continuing onto Beinn a' Chroin by the Beallach Buidhe. A direct ascent is possible from the same starting point by walking high up into Coire Earb and then climbing the mountain by the north ridge which leads to the eastern end of the summit ridge. The mountain can also be climbed from the east starting at the end of the public road which leads to Inverlochlarig from the A84 at grid reference . This route follows the track by the River Larig to reach the foot of the mountain before climbing it by its steep grassy south east slopes. The summit ridge is undulating with several strange rock formation and some small sheets of water around the highest point.