Off the coast of Marseille, the island of If is home to the Château d’If, a fortress built in the 16th century by Francis I to protect the port of Marseille from invasions. The monument, which was never attacked despite its strategic position, has become one of the region’s most visited sites thanks to a novel published in 1844: *The Count of Monte Cristo* by Alexandre Dumas.
9 August 2026 10:00 + more dates
A fortress never attacked, now a literary legend

A fortress that was never used— Built between 1524 and 1531 on the orders of Francis I to protect Marseille from an invasion by sea, the fortress never had to repel a single assault. Its legend took shape elsewhere, within its walls, which were converted into a state prison as early as the mid-16th century.
An Unusual Surprise – In 1844, Alexandre Dumas published *The Count of Monte Cristo*. The character ofEdmond Dantès, unjustly imprisoned for 14 years before escaping by throwing himself into the sea, propelled this forgotten prison to the status of a world-famous site. As early as the 1850s, the first tourists were already asking to see “Edmond Dantès’s cell”: the guards set one up for them, complete with the hole in the wall through which the prisoner is said to have escaped, which is still visible today.
A typical day at the Château d’If

The boat ride from the Old Port takes about 10 minutes, offering a view of the Marseille coastline as soon as you leave the harbor. Once on the island, head to the fortress cells, including the one attributed to Edmond Dantès and his famous passage to the neighboring cell—which you can reach more quickly by booking your ticket in advance to avoid waiting during peak hours.
The tour ends on the rampart walk, where the view of Marseille’s harbor and the Frioul archipelago alone is worth the trip. Be sure to wear closed-toe shoes, as the ground can be slippery, and leave dogs and large luggage behind: they are not allowed inside the monument.
Good to Know – Certain groups (minors, job seekers, people with disabilities) are admitted free of charge upon presentation of a valid ID.
Half a day is enough to complete the tour: a walk there, an exploration of the cells and the ramparts, then a return to the Old Port in the late morning or afternoon, when the light over the bay is at its most beautiful.
Did you know? Even before it housed its first prisoners, the Île d’If was home to a most unexpected inhabitant: a rhinoceros, a gift from the King of Portugal to the Pope and left there pending its transfer, had drawn crowds of Marseille residents who came to admire it. François I, passing through the region, heard about it and went to see the animal himself—it was upon discovering the panoramic view from the island that he is said to have realized its defensive potential.
Château d’If: Skip-The-Line Entry
9 August 2026 10:00 + more dates
