Tour Scotland Ardmaddy Oban and Argyll Holiday Cottage. "Breathtaking views over the Sound of Seil". This 15th-century castle enjoys an idyllic lochside location and is set amongst the unspoilt hills and glens of a quiet peninsula overlooking Seil Sound, about 12 miles south of Oban. Ardmaddy, once a MacDougall castle, was acquired by the Campbells of Breadalbane in the late 17th century to form the western bastion of their estates, which at that time extended as far east as Taymouth Castle in Perthshire. This magnificent defensive position grants today’s (more peaceable) visitors an outstanding location.