Danna, ScotlandDanna is an inhabited tidal island in Argyll and Bute.GeographyIt is connected to the mainland by a stone causeway and is at the southern end of the narrow Tayvallich peninsula, which separates Loch Sween from the Sound of Jura. It is part of the Ulva, Danna and the MacCormaig Isles SSSI. Danna is part of the Knapdale National Scenic Area, one of 40 in Scotland.