Approximately eight nautical miles (fifteen kilometres) in width, the Sound of Harris provides the main sea passage through the Hebridean archipelago, from the Atlantic Ocean to The Minch.
[1] There are many islands and numerous reefs in the Sound, the largest being Berneray, Pabbay, Ensay and Killegray.
[1] It is part of the South Lewis, Harris and North Uist National Scenic Area, one of 40 in Scotland.
[2] Since 1996, a vehicle ferry links Leverburgh, Harris to Berneray, itself connected by causeway to North Uist.
The MCA require that the vessel only proceed if the next two marker buoys are visible.