Saint-Malo guided boat trip: 1h30 around the ramparts & forts

The forts sit closer than you'd expect from the water.

A 1h30 guided boat trip around Saint-Malo departs with a local guide who shares the city's privateering and maritime history while you pass the ramparts, the city of Alet, and four coastal forts including Fort du Petit Bé. The guide speaks English and French, children are welcome from age 2, and boarding happens 15 minutes before departure.

Step-by-step itinerary

Guided boat trip around Saint-Malo

• Embark on boat with guide Nicolas
• Go around the fortified city
• Circle the fort depending on tide
• Pass near the national fort
• Pass by the old powder magazine
• Explore maritime forts by water

The Experience

The boat leaves for a run around the fortified city and its outlying defenses, passing close to the four maritime forts that once guarded the bay. Nicolas, the guide, was born into a fishing family and knows the water and the stories—the privateers, the sea battles, the commerce that built Saint-Malo, and how the ramparts and fortifications took their shape. From the sea you see Alet, where the city began, and the outport, angles on the city that land routes don't offer.

The trip runs 90 minutes total, with boarding 15 minutes before the stated departure time. The boat passes near the national fort and Fort du Petit Bé, and the exact route adjusts for the tide—some approaches and views depend on the water height. The guide speaks in both English and French, so the commentary reaches the whole boat. Children from age 2 travel, and the boat accommodates small groups.

What’s included

• All fees and taxes.
• boarding 15 minutes before departure.
• live guide commentary in English and French.
• passage around the ramparts, Alet, the outport and four maritime forts.

Good to know

Easy physical levelPets welcomePublic transport nearbyNot for heart conditionsNot for back problems

Operated by Marin Malouin

Is this one for you?Choose this boat tour if you want to see the forts and ramparts from the water with a local guide; pick the land-based walk if you need a fixed route and prefer exploring on foot.

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Top questions

What are the four maritime forts around Saint-Malo?

The boat passes four coastal forts that defended the bay, including the national fort and Fort du Petit Bé. The guide explains their role in Saint-Malo's maritime defense and how they shaped the city's history as a privateering port.

Does the boat go inside the ramparts or around them?

The boat circles the fortified city from the water, passing around the ramparts and the outport so you see the defenses from the bay side rather than from within the walls.

Is this tour suitable for young children?

Children are welcome from age 2, and the boat accommodates families in small groups. The 90-minute duration and calm bay setting work for most children, though the boat does move with the tide and water conditions.

What is Alet, and why does the guide mention it?

Alet is the cradle of Saint-Malo—the original settlement where the city began. The boat passes it during the trip so you see where the privateering city's story started.

How does the tide affect the boat route?

The water height determines which forts and features the boat can approach closely and which views are possible. The guide adjusts the route on the day to work with the tide, so you see what the conditions allow.