Carna or Càrna is an island in Loch Sunart, an arm of the sea, close to the Ardnamurchan peninsula, on the west coast of Scotland. Carna lies wedged across the mouth of Loch Teacuis in the middle of Loch Sunart, forming two narrow kyles which provide some of the trickiest rock-dodging for yachtsmen anywhere on the west coast. Moine schist bedrock of …Carna or Càrna is an island in Loch Sunart, an arm of the sea, close to the Ardnamurchan peninsula, on the west coast of Scotland. Carna lies wedged across the mouth of Loch Teacuis in the middle of Loch Sunart, forming two narrow kyles which provide some of the trickiest rock-dodging for yachtsmen anywhere on the west coast. Moine schist bedrock of quartz-feldspar constitution, with mixed schists and mica schists in a west coastal strip. A north–south ridge divides the island in two. From the heather covered rocky peak of Cruachan Chàrna, there are extensive views over Oronsay, Loch Sunart, Morvern, Coll and Isle of Mull.