St Mary's, Isles of Scilly

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St Mary's
Cornish: Ennor
St Marys Island.png
Map of St Mary's, Isles of Scilly
St Mary's is located in Isles of Scilly
St Mary's
St Mary's
 St Mary's shown within Isles of Scilly
Population 1,723 (2011)
OS grid reference SV919361
Unitary authority Isles of Scilly
Ceremonial county Cornwall
Region South West
Country England
Sovereign state United Kingdom
Postcode district TR21
Dialling code 01720
Police Devon and Cornwall
Fire Isles of Scilly
Ambulance South Western
EU Parliament South West England
UK Parliament St Ives
List of places

Coordinates: 49°54′50″N 6°17′31″W / 49.914°N 6.292°W / 49.914; -6.292

St Mary's (Cornish: Ennor the mainland) is the largest and most populous island of the Isles of Scilly, an archipelago off the southwest coast of Cornwall in England.


The main town, Hugh Town (Cornish: Tre Huw), was sold to the inhabitants by the British crown in 1949. The rest of the island belongs to the Duchy of Cornwall. Other settlements on the island are Old Town, Porthloo, Holy Vale, Maypole, Rocky Hill and Telegraph.

The island became the home of British Prime Minister Harold Wilson and his final resting place (the cemetery at Old Town Church) after his death in 1995.


St Mary's is the only island of the Isles of Scilly with a significant road network and the only island with public highways, including three A roads (measuring 4.7 miles in total length) which are numbered in Zone 3 of the British numbering scheme (the A3110, A3111 and A3112); although these 'A' roads are generally quiet country lanes in nature. Roads and streets across Scilly have very few signs or markings, and route numbers are not marked at all.

In 2005 there were 619 cars and vans on St Mary's; the island also has taxis and a conducted bus tour. Vehicles in Scilly are exempt from annual MOT tests.[1][2][3]

By air, the island is served by St Mary's Airport. The following air services currently operate:

By sea, the Isles of Scilly Steamship Company provides a passenger and cargo service from Penzance, which is currently operated by the Scillonian III passenger ferry, supported by the Gry Maritha cargo vessel. The other islands are linked to St. Mary's by a network of inter-island launches.[7] The main harbour of St Mary's (and the Isles of Scilly) is at Hugh Town, and is called St Mary's Harbour.


The harbour at Hugh Town, looking east; the quay is the where the Scillonian III berths.

There has been an RNLI lifeboat station on St Mary's since 1837. The first two lifeboats were kept in a boathouse on the town beach at Hugh Town. Following closure in 1855 the lifeboat station was re-opened in 1874 and a boathouse was built on the beach at Porth Cressa. In 1899 a new boathouse and slipway were built at Carn Thomas and the first motor boat arrived in 1919.

The lifeboatmen of St Mary's have saved many lives in the dangerous seas around the islands, and many have been awarded bravery medals for their courage.


For the Anglican churches see St Mary's Church, St Mary's and St Mary's Old Church, St Mary's.

John Wesley preached here on 13 September 1743. The Wesleyan Methodist Society was established in 1788 and the first chapel erected in 1790. This was replaced in 1828. The present Methodist church was built in 1899 by A.J. Trenear in Hugh Town and is part of the Isles of Scilly Methodist Circuit.


Telegraph Tower[edit]

The Coastguard's Lookout Tower is also known as the Telegraph Tower. It was used by Radio Scilly for broadcasting. Dating from 1803, it was one of three gun towers built on St Mary's by Major Daniel Lyman. They were intended to accommodate 8-10 men and mount a 32-pounder carronade at the top. It was at this tower about 1898 that Guglielmo Marconi heard wireless signals transmitted from Porthcurno, a distance of 30 miles.

Harry's Walls[edit]

Harry's Walls, St. Mary's

Harry's Walls are the remains of an unfinished artillery castle situated on a hilltop to the north-east of Hugh Town. It was begun in 1551 as part of a major phase of fortification on the Isles of Scilly, undertaken to counter threats from the French. It was left unfinished because the site was recognised to be unsuitable.

Giants Castle[edit]

Giants Castle is a ruined monument on the coastal path between the airfield and Porthellick Bay.

The Garrison and Star Castle[edit]

Star Castle is at the centre of a fortification system around the west side of St Mary’s known as the Garrison. The walls of the castle take the shape of an eight-pointed star. It comprises an outer wall around the outcrop of Hew Hill, protecting the town and the castle, with strategically placed gun batteries at regular intervals around the outer wall, allowing covering fire at all angles.

The Star Castle was built in 1593 by the Surveyor of the Royal Works and mapmaker Robert Adams (d.1595), under the direction of Francis Godolphin, following the Spanish Armada of 1588.[8] Fearing another Spanish invasion, in May 1593 Queen Elizabeth I ordered the construction of a fort and two sconces as a lookout for any intruder ships.[9][10]

In 1740 Master Gunner Abraham Tovey transformed the Garrison building walls with gun batteries, including Colonel Boscawen's Battery,[11] in a circular shape following the coast line of The Hoe. Star Castle is now a hotel.

Name plate on Colonel George Boscawen's Battery

Peninnis Head[edit]

The 14 metre metal tower lighthouse on Peninnis Head was built in 1911 as a replacement for the 1680 lighthouse in the centre of St Agnes. The lighthouse was converted from acetylene gas to electricity in 1992 and the original range of 17 nautical miles was reduced to nine in 2011. [12][13] The headland is within the Isles of Scilly Area of Outstanding Natural Beauty and part of the Heritage Coast. It is also a Geological Conservation Review site for its Quaternary geomorphology and was first designated a Site of Special Scientific Interest (SSSI) in 1971 for both its biological and geological interests.[14]

Porthellick Cove[edit]

Main article: Porth Hellick
Memorial at Porthellick Cove where Shovell's body was washed ashore

Porthellick Cove contains a memorial to mark the spot where the body of Admiral Sir Cloudesley Shovell was washed ashore after the 1707 Scilly naval disaster. This was one of the greatest maritime disasters in British history, when four ships (Association, Firebrand, Romney and Eagle) with nearly 2,000 sailors were lost.

Other locations[edit]

The following is a list of some other locations on St Mary's:


  • 1841 - 1,519 plus 26 in the Garrison
  • 1861 - 1,424
  • 1871 - 1,368
  • 1881 - 1,290
  • 1891 - 1,201
  • 1901 - 1,355
  • 1911 - 1,376
  • 1921 - 1,196
  • 1931 - 1,216
  • 1951 - 1,625
  • 1961 - 1,736
  • 1971 - 1,958
  • 1981 - 2,073
  • 1991 - 1,600
  • 2001 - 1,666
  • 2011 - 1,723

See also[edit]


  1. ^ Motor Vehicles (tests) Regulations 1981 (SI 1981/1694)
  2. ^ "A Sustainable Energy Strategy for the Isles of Scilly" (PDF). Council of the Isles of Scilly. November 2007. pp. 13, 21. Retrieved 21 August 2010. 
  3. ^ "Travel Information". ScillyOnLine. Retrieved 2012-05-10. 
  4. ^ "British International home page". British International Ltd. Retrieved 17 January 2007. 
  5. ^ "Isles of Scilly helicopter link 'could reopen in 2015'". British Broadcasting Corporation. Retrieved 10 April 2015. 
  6. ^ "Skybus Timetables". Skybus. Retrieved 8 June 2010. 
  7. ^ "Isles of Scilly Travel – Travel by sea". Isles of Scilly Travel. Retrieved 17 January 2007. 
  8. ^ Colvin, Howard M., ed., History of the King's Works, vol.3 (1975), pp.94-5, see also vol.4 (1982)
  9. ^ Calendar State Papers Domestic, 1591-1594, London (1867), pp.346-7, 365-367
  10. ^ Nikolaus Pevsner (1970) Cornwall; 2nd ed. (The Buildings of England). Penguin; p. 210
  11. ^
  12. ^ Changes to lighthouse as it marks 100th year. Cornishman 28 July 2011. p 15.
  13. ^
  14. ^ "Peninnis Head (St. Mary’s)" (PDF). Natural England. Retrieved 31 December 2011. 
  15. ^ Isles of Scilly Golf Club

External links[edit]

Media related to St Mary's, Isles of Scilly at Wikimedia Commons