The Isle of Arran is a roro ferry that is currently owned and operated by the Scottish ferry company Caledonian MacBrayne. She was built in 1983 by Ferguson Ailsa, Glasgow for the company where she entered service on the Androssen-Brodick route the following year. In 1993, the vessel was replaced by the larger and newly-built Caledonian Isles. The Isle of Arran was moved to the Kennacraig-Islay route, replacing the much smaller Claymore. The Isle of Arran brought higher passenger and vehicle capacity to the route, however during the winter, she took on a relief role for the larger Caledonian MacBrayne ferries. In 2001, the Hebridean Isles was moved to the Islay-Kennacraig route, replacing the Isle of Arran. Following this, she was left as a spare vessel. In 2002, the Isle of Arran joined the Clansman and the Isle of Mull on the Oban routes. The new service proved to be a success, however the Lord of the Isles replaced her in 2003 following the introduction of the newly-built Coruisk. Later that year, the vessel joined the Hebridean Isles on her former route between Islay and Kennacraig. In 2004, she was taken out of service to have work done to refurbish her vehicle decks. From 2005, the vessel has remained as a relief vessel, filling in to essentially relieve larger vessels during strenuous times. Then, in 2007, she returned to regular service on the Kennacraig-Islay route. In 2010, the Isle of Arran collided with the linkspan at Kennacraig, resulting in damage to the linkspan and to the vessel. The following year, the Finlaggan replaced the Isle of Arran, leaving her as a spare vessel once more. The ferry's facilities include a bar, a lounge, reception area, cafeteria and an area of open deck accessible to passengers. The Isle of Arran has no sister ships. Her current port of registry is Glasgow, Scotland, United Kingdom.