Making a connection across the Sound of Berneray between the islands of Berneray and North Uist, the Berneray Causeway is one of a network of bridges and causeways which links the islands in the Outer Hebrides. Opened on the 8th April 1999 by HRH Prince Charles, who had spent time living on a croft on the island in the late 1980s, the causeway is 870m (951 yards) in length, 10m (33 feet) wide and cost £6.6 million to construct. It replaced a ferry service which was previously the only means of access to the island.
The causeway, which curves gently as it crosses from Otternish (North Uist) to Stone (Berneray), has culverts to allow the passage of otters and includes barriers to keep rabbits off Berneray, thus protecting its unique ecology.