The Isle of Cumbrae is a roro vehicle ferrythat is currently owned and operated by the Scottish ferry company Caledonian MacBrayne. She was built in 1977 by Ailsa Shipbuilding Company in Troon for the company where she was placed on the Largs route. In 1986, she was replaced by the newly-built twins Loch Striven and the Loch Linnhe. She moved to the Fishnish-Lochaline route. In 1997, she was replaced again, this time by the Loch Alainn. She was then moved to the summer Portavadie-Tarbert route where she remains today. In winter, she acts as a replacement for the Loch Dunvegan and the Loch Fyne. She has no sister ships, but is widely based on the design of the Island Class ferries. She can carry 18 cars and provides 52 lanemetres. Her current port of registry is Glasgow, UK.