The Bute is a small roro ferry that is currently owned and operated by the Scottish ferry company Caledonian MacBrayne. She was built in 2005 by Remontowa in Poland for the company where she was christened and placed on the route that links Wemyss Bay with Rothesay. She has two lounges, a single kiosk, a half enclosed car deck and space on the outer decks. The Bute has a younger sister ship, the Argyle, who accompanies the Bute on the Wemyss-Rothesay route. She can accommodate 450 passengers and can carry 66 vehicles. Her current port of registry is Glasgow, UK.