👛 Price for a single visit: €5
⏰ Tours are available Monday to Friday, at 11am and 2pm. Further information and bookings on the Bonifacio Tourist Office website.
Legend has it that the structure was dug by hand in a single night, by the Spanish troops of King Alfonso V of Aragon, during the siege of the citadel of Bonifacio in 1420, which at the time was a stronghold ruled by the Genoese.
In reality, however, it would have taken much longer to build, as the staircase existed before the siege by the King of Aragon. It would have been created by Franciscan monks to access a freshwater spring - the Saint-Barthélemy well - located in the cave at the foot of the cliff. The fact remains, however, that this 45° inclined staircase is a feat of medieval engineering that has stood the test of time without ever collapsing!