How do lighthouse keepers switch shifts when the lighthouse isn’t connected to the mainland? We’ve seen how the tumultuous sea can almost overtake lighthouses during a storm, but the sea can be challenging even in more fair weather. Watch how lighthouse guards move to and from their solitary towers in this footage at le Phare de Kéréon, a lighthouse located in the Iroise Sea off the coast of north-western France, from the 2006 French documentary Il était un phare… by Thierry Marchadier.

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