Port Askaig (Port Code:GBPAS) serves as the main port of Islay, sharing passenger services to the Scottish mainland with Port Ellen. It also has a regular service to Feolin, Jura across the Sound of Islay, and in the summer there is also a weekly service via Colonsay to Oban.  Port Askaig has been a port for landing passengers and goods to Islay for centuries. Ships which sailed out from West Loch Tarbert on the Kintyre Peninsula have called in at Port Askaig since the 18th century and a steamer service from Glasgow was the running as early as 1825. It is the base of the Islay RNLI lifeboat which is called out ten to twelve times a year.
Between 2003 and 2009 Port Askaig was the site of a £13.7 million civil engineering project. The work included a new linkspan and other berthing facilities for mainland ferries, new facilities for the Jura ferry, and new car parks and waiting rooms. The redeveloped port was officially re-opened on 10 September 2009 by the Princess Royal.