Mont St Michel has become an island for the first time since 1879. The sand around Mont Saint Michel moved, so if nothing was done, in few years Mont Saint Michel would have been ending in the middle of a field and not any more in the sea. So they start some work to let the Mont Saint Michel in the sea, and 20 years later it’s now almost finished. January 2015, we had some big tide in France, so it was one of the first time that the Mount was going to be an island again.