Loch Long

Loch Long (Gaelic for Ship Lake, Long being the word for ship) is a body of water in Argyll and Bute, Scotland. The sea loch extends from the Firth of Clyde at its southwestern end. It measures approximately 20 miles (32 km) in length, with a width of between 1 and 2 miles (1.6 and 3.2 km). The loch also has an arm, Loch Goil, on its western side.
Loch Long was historically the boundary between Argyll and Dunbartonshire. However in 1996 boundary redrawing meant that it moved wholly within the council area of Argyll and Bute.
The loch was used as a testing ground for torpedoes during World War II and contains numerous wrecks. It is now a popular area for sport diving.