 There was also a castle at Achallader, at the head of Glen Orchy.The castles on Loch Awe were once served by boats, probably galleys - the island near Innisconnel is Innis-Sea-Rhamach, the island of the six-oared galleys.Kilchurn was built, probably in 1437, by Sir Colin Campbell, the First Laird of Glenurquhay.