North Tower (Tour du Nord)
About North Tower (Tour du Nord)
The Tour du Nord is a 13th-century defensive tower built around 1210-1256 under Abbot Jourdain, making it one of the oldest stone fortifications at Mont-Saint-Michel. Also known as Tour Marilland, this round tower with a flared base features balistaires (arrow slits with round openings for projectiles), representing advanced medieval military architecture. The tower served as a critical observation post during the Hundred Years' War when Mont-Saint-Michel withstood nearly 30 years of English siege (1423-1450s). Today visitors can freely access the tower via the Chemin de Ronde (ramparts walkway), which connects seven towers along the island's fortifications. The tower offers one of the best vantage points for observing the mascaret (tidal bore) phenomenon, where the sea rushes into the bay with tides reaching up to 15 meters difference. Access is free and available year-round, though comfortable walking shoes are recommended due to medieval stairs and uneven stone surfaces.
Interesting Facts
During the famous English assault of June 17, 1434, around 20,000 English troops under Lord Scales attacked the fortifications. The French defenders successfully repulsed the attack, and the English abandoned two iron bombardes (cannons) called 'Michelettes,' which are now displayed as war trophies at the fortress entrance.
Victor Hugo described the tidal bore visible from this tower as the sea rushing in 'like a galloping horse.' The phenomenon occurs because the bay's unique geography creates one of Europe's highest tidal ranges, with water levels changing up to 15 meters between low and high tide.
In 1417, Abbot Robert Jolivet extended the ramparts from the Tour du Nord down to the lower village, nearly doubling the fortified perimeter. Ironically, Jolivet later defected to the English side in 1420, yet the very fortifications he built helped the French resist his former allies for decades.
Planning Your Visit
Opening Hours
Location & Practical Info
Address
Chemin de Ronde, 50170 Le Mont-Saint-Michel, France
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