The stream can be found between Inverarnan and Ardlui. The river splits and goes under the A82 with two narrow bridges, south of which there’s a large layby for parking. Approach - Walk up the main road a short way, turn off where there’s a minor road closed to vehicles. This road/track continues north, goes under the railway then bends round south up the hillside to where the gorge comes into view. Exit – where canyon reaches either of road bridges. From the start there are a few small features, descend either downclimb or natural anchors. Halfway down is the main event. Overall height unknown. From the top you can reach lower platforms to get down in a few pitches. After this the canyon continues with more features including one 10m abseil into deep pool. First Decent: Andrew Coultherd, Donald MacQuarrie, Lee Wilson