This is the roughest and arguably the hardest section of the whole route. Although you will be walking north along the loch shore, and not climbing much more than 80m at any one time, there are a tremendous number of undulations and convolutions, especially north of Inversnaid. The route is badly eroded in sections and will offer little respite from rocks, mud and tree roots until you arrive at Inverarnan, save for the stunning loch-side scenery! After Rowardennan, there are a couple of places to take refreshment before getting to the famous Drover's Inn at Inverarnan, which is so full of old character. You could raise the ball and summon the Ardleish/Ardlui ferry to take you over to the other side of the loch for a while or to stay at the hotel there, or you could continue on into Glen Falloch.