Loch Etive - Wikipedia Loch Etive (Scottish Gaelic, Loch Eite) is a 30 km sea loch in Argyll and Bute, Scotland It reaches the sea at Connel, 5 km north of Oban It measures 31 6 km (19 miles) long and from 1 2 km ( mile) to 1 6 km (1 mi) wide Its depth varies greatly, up to a maximum of 150 m (490 ft)