What is the largest Scottish island without a permanent population?

Taransay is an island in the Outer Hebrides of Scotland. It was the host of the British television series "Castaway 2000". Uninhabited since 1974, except for holidaymakers, Taransay is the largest Scottish island without a permanent population. It is 1 hectare (2.5 acres) larger than Scarba, which is also uninhabited.

Taransay lies 1+7⁄8 miles (3 kilometres) from Harris, separated by a stretch of sea called the Sound of Taransay. It is also part of the civil parish of Harris and the Na h-Eileanan Siar council area of Scotland. Crossings between the two islands are dependent on calm weather and there are no harbours for large boats on Taransay or the west coast of Harris. Taransay is 4 miles (6.5 kilometres) long, and, at its widest point, 3.1 miles (5 kilometres) across, with an area of 5+3⁄4 square miles (14.9 square kilometres).

Taransay is made up of two 750-foot (229-metre) heather-covered hills connected by a white sandy isthmus in the south of the island. It overlooks the bays of Luskyntyre and Seilibost bay to the east, with the Atlantic Ocean to the west. The bays are bordered with sandy beaches and machair dunes. The area is mostly gneiss, with granite veins. The highest point of the island is Ben Raah at 876 feet (267 metres).