Brittany Sights

Base de Sous-Marins Keroman

  • Port de Keroman Map It
  • Lorient
  • Military Site

Published 06/25/2015

Fodor's Review

Built by the Nazis during World War II, this submarine base is the world's largest 20th-century fort. Thirty submarines could be comfortably housed in the squat concrete bunker—and its 27-foot-thick roof withstood intensive Allied bombing virtually intact. Ninety-minute tours begin at 3 pm daily in summer and during school vacations; they run at the same time on Sunday year-round.

Sight Information


Port de Keroman, Lorient, 56100, France

Map It




Sight Details:

  • €6
  • Closed last 3 wks of Jan.

Published 06/25/2015


Map View

Map of

What's Nearby

  • Sights

Add Your Own Review

When did you go?

Minimum 200 character count

How many stars would you give?




Don't Miss

No Thanks

Love To Travel?

Get FREE email communications from Fodor's Travel, covering must-see travel destinations, expert trip planning advice, and travel inspiration to fuel your passion.

Thank You

Now sit back, relax, and check your inbox to start planning your next travel adventure.

Please tell us more about the type of travel you're interested in. Check all that apply.