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Royal Fort: Island Fortress and Historic Prison

Explore a historic fortress on a Mediterranean island, where the mysteries of the Iron Mask meet stunning natural beauty.

★★★★★4.3 (1762)

The Royal Fort, located on Île Sainte-Marguerite, the largest of the Lérins Islands, is a historical landmark with a rich past. Originally built in the 17th century, it served as a prison, most famously housing the Man in the Iron Mask, and now houses the Sea Museum of Cannes.

Plan your visit

A brief summary to Royal Fort

Opening times, essentials, and a few local tips gathered into one calmer, easier-to-scan planning section.

Plan your visit

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Cannes - Île Sainte-Marguerite, Cannes, FR
Monday
10 am-5:45 pm
Tuesday
10 am-5:45 pm
Wednesday
10 am-5:45 pm
Thursday
10 am-5:45 pm
Friday
10 am-5:45 pm
Saturday
10 am-5:45 pm
Sunday
10 am-5:45 pm
Eve
From Eve

Know before you go

Hi, I'm Eve. Here are a few practical things to know before exploring Royal Fort.

Local know-how to help you travel smarter and make the most of every moment.

Wear comfortable shoes for walking the island's trails and exploring the fort.
Bring binoculars for birdwatching at the Étang de Batéguier, a salt water lake that attracts migratory birds.
Allow ample time to explore both the fort and the island's natural surroundings.
Dogs are allowed on the island and on the ferry, but must be kept on a leash.

Discover more about Royal Fort

Located on Île Sainte-Marguerite, the Royal Fort stands as a testament to centuries of history. Constructed between 1624 and 1627, the fort was initially a modest fortified house intended to block sea access to Cannes. Over time, it evolved into a strategic military structure, notably under the direction of Vauban, who transformed it into a formidable citadel.The fort's history is intertwined with the famous story of the Man in the Iron Mask, who was imprisoned here during the reign of Louis XIV. Visitors can explore the prison cells and learn about the mysteries surrounding this enigmatic figure. The Sea Museum, housed within the fort since 1978, showcases archaeological finds from both land and underwater excavations, including Roman cisterns and artifacts from shipwrecks.Île Sainte-Marguerite itself offers a unique blend of natural beauty and historical significance. The island is covered with forests of pine and eucalyptus, crisscrossed by marked trails that invite exploration. The fort offers panoramic views of the surrounding sea and the city of Cannes. Today, the Royal Fort also hosts a youth hostel, offering accommodation and activities for various groups.

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    Getting There

    Ferry

    The only way to reach the Royal Fort is by ferry from Cannes. Ferries depart regularly from Quai Max Laubeuf in Cannes. The crossing takes approximately 15-30 minutes. Round-trip tickets cost around €18.50 for adults, €17.00 for youths (13-25) and seniors (65+), and €12.50 for children (5-12). Children under 5 travel for free. Check the latest schedules with Riviera Lines or Trans Côte d'Azur.

    A brief summary to Royal Fort

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