South Stack Lighthouse

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South Stack Lighthouse
Ynys Lawd
South Stack Light House (7991522115).jpg
South Stack Lighthouse in 2012
South Stack Lighthouse is located in Wales
South Stack Lighthouse
LocationHoly Island, Anglesey, Wales
Coordinates53°18′24″N 4°41′58″W / 53.30667°N 4.69944°W / 53.30667; -4.69944Coordinates: 53°18′24″N 4°41′58″W / 53.30667°N 4.69944°W / 53.30667; -4.69944
Year first constructed1809
Constructionstone tower
Tower shapetapered cylindrical tower with balcony and lantern
Markings / patternwhite tower and lantern
Tower height28 m (92 ft)
Focal height60 m (200 ft)
Current lens1st order six panel catadioptric rotating
Intensity467,000 candela
Range24 nmi (44 km; 28 mi)
CharacteristicFl W 10s.
Fog signalone 3s. blast every 30s. (range of 2 nmi (3.7 km; 2.3 mi))
Admiralty numberA5204
NGA number5520
ARLHS numberWAL-025
Managing agentTrinity House[1][2]
HeritageGrade II listed building Edit this on Wikidata

The South Stack Lighthouse is built on the summit of a small island off the north-west coast of Holy Island, Anglesey, Wales. It was built in 1809 to warn ships of the dangerous rocks below.


The lighthouse has warned passing ships of the treacherous rock below since its completion in 1809. The 91-foot (28 m)-tall lighthouse on South Stack was designed by Daniel Alexander and the main light is visible to passing vessels for 24 nmi (44 km; 28 mi), and was designed to allow safe passage for ships on the treacherous DublinHolyheadLiverpool sea route. It provides the first beacon along the northern coast of Anglesey for east-bound ships. It is followed by lighthouses, fog horns and other markers at North Stack, Holyhead Breakwater, The Skerries, the Mice, Point Lynas and at the south-east tip of the island Trwyn Du. The lighthouse is operated remotely by Trinity House.[3] It has been visited by the team at Most Haunted.

Visitors can climb to the top of the lighthouse and tour the engine room and exhibition area. The lighthouse is open seasonally.

See also[edit]


  1. ^ South Stack The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 2 June 2016
  2. ^ South Stack Lighthouse Trinity House. Retrieved 3 June 2016
  3. ^ "Trinity House - South Stack page".

External links[edit]