Campsail, a bay in Roseneath parish, Dumbartonshire, on the SW side of Gare Loch, opposite Row village, and immediately SE of Roseneath pier. Measuring just 1 mile across the entrance, it has a semicircular outline and very beautiful shores, and affords one of the best sheltered anchorages on the W coast of Scotland. It was often, in mediæval times, a station of the royal navies of Scotland; was, for some time, during the last war with France, the station of a line-of-battle ship; was adopted, about 1830, as the retreat of the cutters of the Royal Yacht Club; and bore on its bosom, during a night of 1848, the royal yacht with the royal family on board.

(F.H. Groome, Ordnance Gazetteer of Scotland (1882-4); © 2004 Gazetteer for Scotland)