Les Hanois#Lighthouse

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Les Hanois reef, a group of rocks to the south-west of Guernsey also known as Hanoveaux,{{cite web | url = http://www.geody.com/geospot.php?world=terra&ufi=-1176780&alc=lsh | title = Hanoveaux / Les Hanois, Guernsey | publisher = Geody }} are the westernmost point of the Channel Islands.{{cite web | url = https://www.bbc.co.uk/news/world-europe-guernsey-10871200 | title = Guernsey Hanois fog horn silenced after two weeks | publisher = BBC News }}

The reef has claimed many shipwrecks over the centuries, such as {{HMS|Boreas|1806|6}} ({{navy|UK}}) in 1807. See List of shipwrecks in the Channel Islands.

It is the location of the Les Hanois Lighthouse operated by Trinity House which was built in 1862 from Cornish granite, to a design by James Walker, using a novel dovetail system to lock each stone with the vertically and horizontally adjacent stones.{{cite journal |last1=Douglass |first1=James |title=On the Wolf Rock Lighthouse |journal=Notices of the Proceedings at the Meetings of the Members of the Royal Institution of Great Britain |date=February 17, 1871 |volume=6 |pages=214–227}} It was built in the hope of reducing the number of ships being lost on the reef on the west coast of Guernsey; it undoubtedly saved a number of ships. However, the wrecks continued, the last disaster being the MV Prosperity in 1974, a freighter lost with all hands on La Conchée reef.{{cite book |last=Dafter |first=Ray |title=Guernsey Sentinel |publisher=Matfield Books |date=2003 |ISBN=0-9540595-1-4}}

File:Guernsey, Les Hanois, July 2010 93.jpg