The black-and-white-striped Phare de Créac'h is the world's most powerful lighthouse. Beaming two white flashes every 10 seconds and visible for over 50km, it serves as a beacon for over 50,000 ships entering the Channel each year. Beneath is the island's main museum, which tells the story of these vital navigation aids. There are also displays devoted to the numerous shipwrecks that have occurred off this island.
