East Loch Tarbert is a sea loch

Loch

Loch is the Irish and Scottish Gaelic word for a lake or a sea inlet. It has been anglicised as lough, although this is pronounced the same way as loch. Some lochs could also be called a firth, fjord, estuary, strait or bay...

 that lies to the east of the island of Harris in the Outer Hebrides

Outer Hebrides

The Outer Hebrides also known as the Western Isles and the Long Island, is an island chain off the west coast of Scotland. The islands are geographically contiguous with Comhairle nan Eilean Siar, one of the 32 unitary council areas of Scotland...

 of Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

. The loch contains several small islands including Sgeotasaigh, Stiughiag, Stiughiag na Leum and Rosaigh and the larger bridged island of Scalpay

Scalpay, Outer Hebrides

Scalpay to distinguish it from the other Scalpay) is an island and community in the Outer Hebrides of Scotland.-Geography:Scalpay is around 2.5 miles long and rises to a height of 341 ft at Beinn Scorabhaig. Scalpay's nearest neighbour, Harris is just 330 yds away over narrow Caolas...

. The Caledonian MacBrayne

Caledonian MacBrayne

Caledonian MacBrayne is the major operator of passenger and vehicle ferries, and ferry services, between the mainland of Scotland and 22 of the major islands on Scotland's west coast...

 ferry from Skye

Skye

Skye or the Isle of Skye is the largest and most northerly island in the Inner Hebrides of Scotland. The island's peninsulas radiate out from a mountainous centre dominated by the Cuillin hills...

 to Harris reaches Tarbert via this loch.

The village of Tarbert

Tarbert, Harris

Tarbert is the main community on Harris in the Western Isles of Scotland. It is also a car ferry terminal to Uig on Skye. Its name means "isthmus".-1990 RAF air crash:...

 lies on the small isthmus

Isthmus

An isthmus is a narrow strip of land connecting two larger land areas usually with waterforms on either side.Canals are often built through isthmuses where they may be particularly advantageous to create a shortcut for marine transportation...

 which separates East Loch Tarbert from West Loch Tarbert

West Loch Tarbert

West Loch Tarbert is a sea loch that separates the northern and southern parts of the island of Harris in the Outer Hebrides of Scotland. A small isthmus joins these two areas, on which is to be found the village of Tarbert. The loch contains the islands Soay Mòr, Soay Beag and Isay, while...

and joins North and South Harris.