Northern France – I posted various images of its sister site St Michaels Mount in Cornwall earlier this year.
Mont Saint-Michel (pronounced: [mɔ̃ sɛ̃ mi.ʃɛl]; English: Saint Michael‘s Mount) is a rocky tidal island and a commune in Normandy, France. It is located approximately one kilometre (just over half a mile) off the country’s north-western coast, at the mouth of the Couesnon River near Avranches. The population of the island is 44, as of 2009. The island has held strategic fortifications since ancient times, and since the 8th century AD been the seat of the monastery from which it draws its name. The Mont-Saint-Michel and its bay are part of the UNESCO list of World Heritage Sites. More than 3,000,000 people visit it each year. Wikipedia.