Les Hanois reef, a group of rocks to the south-west of Guernsey also known as Hanoveaux, are the westernmost point of the

Channel Islands The Channel Islands ( nrf, Îles d'la Manche; french: îles Anglo-Normandes or ''îles de la Manche'') are an archipelago in the English Channel, off the French coast of Normandy. They include two Crown Dependencies: the Bailiwick of Jersey ...

. The reef has claimed many shipwrecks over the centuries, such as () in 1807. See List of shipwrecks in the Channel Islands. It is the location of the Les Hanois Lighthouse operated by

Trinity House "Three In One" , formation = , founding_location = Deptford, London, England , status = Royal Charter corporation and registered charity , purpose = Maintenance of lighthouses, buoys and beacons , he ...

which was built in 1862 from Cornish granite using a novel dovetail system to lock each stone with two others. 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. Guernsey, Les Hanois, July 2010 93

References

Hanois, Les {{Guernsey-geo-stub