A few walkers coming down, only passed one going up, stuck at the wee crag just before the summit with his large boxer dog. Good views all round. Set off for the turning stone for the run down to Lag Uaine. Good route choice avoiding crags and the steeper grassy banks, soon at the bottom of the ascent ridge towards Glas Bealach.
Short refuel then off towards Bealach a'Mhaim avoiding the boggiest parts. Crossed the bealach and joined the buttermilk burn path towards the Narnain Boulders. Steady run down through both sets of zig zag paths to finish over 4 1/2 hours. Good day for an Arrochar run. More pictures here.