The Outer Hebrides lay to the west of Scotland’s north coast. To the north lie Lewis and Harris, geographically one island, with Lewis, the most densely populated region of the Outer Hebrides, and Harris far more mountainous. From its southern tip, ferries cross to North Uist, Benbecula, South Uist and Eriskay, all linked by causeways. South again, tiny Barra marks the end of the inhabited islands.