Île Vierge (Breton language: Enez-Werc'h) is a 6-hectare (15-acre)[1] islet lying 1.5 kilometres (3⁄4 nautical mile) off the north-west coast of Brittany, opposite the village of Lilia.

[4] The International Hydrographic Organization specifies Île Vierge as marking the south-western limit of the English Channel.

[2] In 1844, the French state purchased the island [2] from sieur Goyon de Coëpel for 6,000 francs.

[2] The electric lamp was installed in 1952 on the original mechanical turning plate, sitting in a bath of mercury.

[2] The twin beam gives a white flash every 5 seconds, visible for 27 nmi (50 km).