Lunga is one of the Slate Islands in the Firth of Lorn in Argyll and Bute, Scotland. The "Grey Dog" tidal race, which runs in the sea channel to the south, reaches 8 knots in full flood. The name 'Lunga' is derived from the Old Norse for 'isle of the longships', but almost all other place names are Gaelic in origin. The population was never substantial and today the main activity is an adventure centre on the northern headland of Rubha Fiola. The surrounding seas are fished for prawns and scallops and there is a salmon farm off the south eastern shores.