Sound of Islay

The Sound of Islay is a narrow strait between the islands of Islay and Jura off Scotland’s west coast. It stretches about 30 kilometres from north to south, bounded by Rubh' a' Mhàil on Islay and Rubh Aird na Sgitheich on Jura. Three small islands lie within the Sound: Am Fraoch Eilean, Brosdale Island and Glas Eilean, all close to Jura’s south-east shore. Jura itself curves south of Loch Tarbert, and the eastern part of the Sound forms one of Scotland’s 40 National Scenic Areas. The strait carries busy ferry routes linking Feolin slipway on Jura with Port Askaig on Islay, and Port Askaig with Kennacraig on the mainland.

The Sound has a long military and maritime history. Am Fraoch Eilean holds the ruins of Claig Castle, built in 1154 by Somerled to guard the strait and later used as a prison. Its thick Norman-style walls, three metres wide, resemble mainland castles of the same period. In 1549 Dean Monro recorded an island here called Eilean a’ Chùirn, possibly the same site. The strait may also have been the scene of the 1156 Battle of Epiphany. Today the Sound is better known for renewable energy, with plans for the world’s largest tidal array of ten turbines to supply power to over five thousand homes.

Visitors to the Sound see a working seaway framed by rugged coastlines and scattered islets. Ferries cross regularly between Jura and Islay, offering views of the tidal currents and the three small islands. The National Scenic Area status highlights the strait’s unspoilt views and wildlife. Walkers on Jura can reach the Feolin slipway to watch the ferries pass. The tidal energy project adds a modern landmark to the historic waters, showing how past and present meet in this narrow channel.