The Isles of Scilly (/ˈsɪli/; Cornish: Syllan or Enesek Syllan) form an archipelago off the southwestern tip of the Cornish peninsula of Great Britain.
Since 1890 the Islands have had a local authority separate from Cornwall’s, but some services were combined with Cornwall and the islands are still part of the ceremonial county of Cornwall; the authority has otherwise had the status of a county council since the passing of the Isles of Scilly Order 1930. The council is currently known as the Council of the Isles of Scilly. The adjective “Scillonian” is sometimes used for people or things related to the archipelago. The Duchy of Cornwall owns most of the freehold land on the islands. Tourism plays a major part in the local economy, along with farming and agriculture. The architecture and particularly that of the Harbours and promenades are all much the same.