Little Cumbrae Island by William Johnson 1828

Castle Island () or Allimturrail"The Island of Little Cumbrae"
(pdf) Humberts Leisure. Retrieved 15 Sept 2011. is a small

tidal island A tidal island is a raised area of land within a waterbody, which is connected to the larger mainland by a natural isthmus or man-made causeway that is exposed at low tide and submerged at high tide, causing the land to switch between being ...

, lying off the east coast of

Little Cumbrae Little Cumbrae () is an island in the Firth of Clyde, in North Ayrshire, Scotland. It lies south of Great Cumbrae, its larger neighbour. The underlying geology is igneous with limited outcrops of sedimentary rock. Little Cumbrae House is of 20th ...

, and to the west of Trail Island, in the

Firth of Clyde The Firth of Clyde, is the estuary of the River Clyde, on the west coast of Scotland. The Firth has some of the deepest coastal waters of the British Isles. The Firth is sheltered from the Atlantic Ocean by the Kintyre, Kintyre Peninsula. The ...

. It is joined to Little Cumbrae at low tide. The

castle A castle is a type of fortification, fortified structure built during the Middle Ages predominantly by the nobility or royalty and by Military order (monastic society), military orders. Scholars usually consider a ''castle'' to be the private ...

which gives the island its name was built in 1527, and was destroyed by

Cromwellian Oliver Cromwell (25 April 15993 September 1658) was an English statesman, politician and soldier, widely regarded as one of the most important figures in British history. He came to prominence during the Wars of the Three Kingdoms, initially a ...

forces in 1650. It is a square keep, and is said to have been built originally to prevent deer poaching.

Footnotes

Islands of the Clyde The Cumbraes Islands of North Ayrshire {{NorthAyrshire-geo-stub