The lighthouse Kéréon is on a nearby island called Men Tensel ("snarling stone"), in the Fromveur Passage between Bannec and Ushant.

These islands and look rather strange; one can see human silhouettes on the rocks bobbing in the thick cloud, seemingly full of formidable mysteries, with their long rakes they stir the ashes in their ovens in the open air.

[2]André Salmon, in the journal Le Petit Parisien, describes Bannec in 1938: At Bannek, along the course of the Fromveur, which separates Mullein, there is little that is living.

It is not clear whether the campers were more discouraged by the incursions of rabbits or camping concern, to the depletion of drinking water and to need to bother with transporting it[3]Until the World War II, like its neighbors, Bannec was inhabited by seaweed harvesters.

Bannec was incorporated into the Parc naturel régional d'Armorique on 30 September 1969 and the Finistere department entrusts management to the SEPNB, now known as Bretagne vivante (Brittany Alive) in October 1976.