Base de Sous-Marins

4.5(2,610)

Museum

About

Base de Sous-Marins in Lorient is a massive WWII German naval base turned interactive museum, offering a deep dive into submarine history. Explore the 1960s French diesel-electric sub Flore-S645 and tour the immense concrete pens that shaped the Battle of the Atlantic.

The site blends historical engineering marvels with engaging exhibits and guided tours, mostly in French, making it a distinctive venue for groups interested in military history and maritime innovation. Nearby cafés and free parking support seamless event logistics.

Best for

Immersive historical team-building tours
Unique client entertaining experiences
Small group educational offsites

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Venue Details

Standout features

Historic Architecture

Largest WWII German submarine base in Europe

Constructed during World War II, this massive naval base is an engineering marvel and Europe's largest submarine fortress, offering a tangible connection to the Battle of the Atlantic.

Interactive Maritime Museum

Tours of a 1960s French diesel-electric submarine

Visitors can explore the Flore-S645, one of only four French submarines open to the public, with guided tours enhanced by an original podcast series that brings submarine life and history to life.

At a glance

Rated 4.5 on Google · 2,610 reviews