Tiree (Scottish Gaelic: Tiriodh) is the most westerly island in the Inner Hebrides of Scotland. The low-lying island, southwest of Coll, has a population of around 800. The land is highly fertile, and crofting, alongside tourism, are the main sources of employment for the islanders. Tiree, along with Colonsay enjoys a relatively high total of hours of sunshine during the late spring and early summer compared to the average for the United Kingdom. Tiree is a popular windsurfing venue and site of Anna Wardley's fourth swim in her Five Island Swim Challenge.