In the small world of Breton lighthouses at sea, which includes such Kéréon , the flagship of the Old or the mare , the lighthouse of Ar-Men is certainly the most famous, because it is very isolated, considerable difficulties has presented its construction and the danger he was facing its staff. Considered an extremely challenging workplace community of lighthouse keepers , it has been dubbed by them "Hell of Hell 2  . " It was not uncommon in the difficult conditions of wind and sea, we can not meet the teams every 15 days as normal. The blows carried by the big swell during storms shake the entire building and can get everything hung on the walls, making them particularly unbearable for periods guards.[Source]