An aerial view of Mont Saint Michel, Normandy, France, on Sunday, March 20, 2011. France’s beloved abbey of Mont-Saint-Michel has reached a ripe old age. It's been 1,000 years since the laying ...

An aerial view shows the Mont Saint-Michel off France's Normandy coast March 20, 2015. The Mont Saint-Michel 11th century abbey is expected to be entirely surrounded by the English Channel ...

An aerial view of Mont Saint Michel, Normandy, France, on Sunday, March 20, 2011. Franceâ s beloved abbey of Mont-Saint-Michel has reached a ripe old age.

An aerial view of Mont Saint Michel, Normandy, France, on Sunday, March 20, 2011. Frances beloved abbey of Mont-Saint-Michel has reached a ripe old age.

People walk past France's Mont-Saint-Michel during the French President's two-day visit in Normandy, in Le Mont-Saint-Michel, June 5, 2023.

FILE - Sheeps graze in the fields around the Mont Saint Michel, Wednesday, May 8, 2018, in western France. France’s beloved abbey of Mont-Saint-Michel has reached a ripe old age.

France’s beloved abbey of Mont-Saint-Michel has reached a ripe old age. It’s been 1,000 years since the laying of its first stone.

FILE – Sheeps graze in the fields around the Mont Saint Michel, Wednesday, May 8, 2018, in western France. France’s beloved abbey of Mont-Saint-Michel has reached a ripe old age.