In the 18th century, the causeway was much longer because the old dikes were farther from the coast.
In the early days, the only way to reach Noirmoutier was by boat.
It was in 1701 that the passage connecting the mainland to the island was first mentioned on a map.
This curiosity has existed since the collapse of the plateau which gave birth to the bay of Bourgneuf.
Later, stabilization work was done to prevent sand from moving and a cobblestone road was laid down.
Around 1840, a regular service was provided by cart or on horseback.
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Crossing the causeway is considered perilous.
Elevated rescue towers are located all along the Passage du Gois for those caught between the tides.
One can climb these towers and wait until they are rescued or the tide falls again.
Since 1986, an unusual race across the causeway the Foulees du Gois is held every year.
In 1999 Passage du Gois was also used by Tour de France bicycle race.
