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Alderney Lighthouse

aka Mannex Lighthouse

Alderney, Channel Isles

Featured Location Guide

Photo by Neil Howard

Built in 1912 to act as a guide to passing shipping and to warn vessels of the dangerous waters around the island. The Alderney Race, a strait of water between Alderney and Cap de la Hague in France includes the strongest tidal streams in Europe. These are caused by a tidal surge from the Atlantic building up in the gulf of St Malo. The water flows through at speed, at high tide, and is sucked back down through as the tide recedes. An uneven sea bed adds to the turbulence as well as a number of hazardous rocks located within a few miles of the lighthouse.

The lighthouse, situated on Quénard Point, to the north-east of the Island, with its tower rising 32 metres, acts as a guide through the Alderney Race. The former keepers' dwellings adjoin the tower, as do the service rooms, and the station is surrounded by a white wall. It is known locally as the Mannex Lighthouse.

It was automated in 1997 with the last resident keepers leaving the lighthouse on 1 October. It is now monitored and controlled by Trinity House at their Operational Control Centre.

In 1998 it was opened to the public and the warden organises conducted tours of the lighthouse through the summer, see the grid below for links to get current opening times. The tour lasts about 45 minutes.

Photo by Neil Howard

Lighthouse information Grid


Alderney Lighthouse, Alderney, Channel Isles

Current status:

Lighthouse is in use, Open to visitors - see below

Geographic Position:

49° 43’.82 N 02° 09’.78 W

Grid Reference:


Ceremonial County:



Granite tower painted white with a central black band to make it more visible to shipping during the hours of daylight.

Map Link:


Aerial photo:


Other photos:

photo  closeup

Originally built:


Current lighthouse built:


Height of Tower:

32 Metres

Height of light above mean sea level:

37 Metres

Character of light:

4 White Flashes Every 15 Seconds

Character of fog signal:

1 Blast Of 3 Seconds Duration Every 30 Seconds

Range of light:

23 nautical miles

Owned / run by:

Trinity House


TH   and TH open 

Other Useful Websites:







Lighthouse Visit Planning Grid

Name: Alderney Lighthouse, Alderney, Channel Isles
Grid Reference:  


Quenard Point, on the North East of Alderney

Getting there: By car or it is linked with the rest of the island by the Alderney railway.
Access: There is a step climb to the stop and it is not recommended for people with a fear of heights. Children under 1 metre high are not allowed up the tower.


Car parking available close to the Lighthouse.








Opening times:

See Trinity House page  of when this is open and

Trinity house Lighthouse closure page



Best Times to Visit: Check opening, access and tide times.



Things To Do, See and Photograph:

Lighthouse, coastal, wildlife, plants, possibly ships.

What to take:

Shoes suitable for climbing many steps, small bag with necessary items- Camera, selected lenses and filters.

Nature highlights:

Coastal birds

Photo Restrictions:

None Known

Other Restrictions: None Known
Nearby Locations:  
Other Relevant pages:

For more articles, lists and other information see the Lighthouses Section

Featured list of Lighthouses - Channel Islands  

Please let us know any other information that we can add to the Further information and Planning Grids or page and any errors that you discover. Before making a long trip to any location it is always wise to double check the current information, websites like magazines may be correct at the time the information is written, but things change and it is of course impossible to double check all entries on a regular basis. If you have any good photographs that you feel would improve the illustration of this page then please let us have copies. In referring to this page it is helpful if you quote both the Page Ref and Topic or Section references from the Grid below. To print the planning grid select it then right click and print the selected area.

Please submit information on locations you discover so that this system continues to grow.


By:  Tracey Park  Section: Lighthouses Key:
Page Ref: CI_ Alderney_Lighthouse Topic: Lighthouses Last Updated: 06/2010


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