The Passage du Gois in France is a very unique road. It connects the Gulf of Burnёf with the island of Noirmoutier.
The road gets flooded twice everyday by high tide, making it available for use just a few hours per day.
Every year, a foot race – the Foulées du Gois– is held across it, starting at the onset of the high tide. The passage was used for Tour de France in 1999.
On both sides of the road there are special panels, which will tell you if the road is passable or not. But travellers still get occasionally trapped in the rapidly rising waters.
Here are some photos of the unusual road.