Passage du Gois is a road that connects the Gulf of Burnёf with the island of Noirmoutier in France. Due to the rising tide, you can only drive along it twice a day for a few hours before it gets flooded. The rest of the time it’s hidden 13 ft beneath the waves.
In 1701, the natural passage connecting the mainland to the island of Noirmoutier was first indicated on a map. Around 1840, a regular service began to be provided by car or on horseback. Today, the road is around 2.58 miles long.