The Ar Men lighthouse is at sea and was built between 1867 and 1881, you can see it from Sein.

• Farandole 
  Boat trips to  discover the Pointe du Raz, Ile de Sein, the mythical lighthouses of La Vieille, Tévenec or Ar Men… or sunset trips (1 hour 30 local products to try on board).
   +33 6 63 89 20 24
   www.ouest-cornouaille.com/