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France

Pays de la Loire

submarine bunker from world war 2

Discover
Places to see

France

Pays de la Loire

submarine bunker from world war 2

submarine bunker from world war 2

Recommended by 23 mountain bikers out of 24

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    Best Mountain Biking Routes to submarine bunker from world war 2

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    1. Grande plage de La Baule – Place des Palmiers loop from La Baule-Escoublac

    45.6km

    02:28

    220m

    Intermediate mountain bike ride. Good fitness required. Suitable for all skill levels.

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    Intermediate

    Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

    Easy

    Intermediate mountain bike ride. Good fitness required. Suitable for all skill levels.

    Intermediate

    Tips

    September 5, 2025

    The Saint-Nazaire U-boat bunker is one of five German U-boat bases built on the French Atlantic coast during World War II. The 301-meter-long bunker was built in just 16 months in 1941/42 using almost half a million cubic meters of concrete. Several hundred men were stationed here until May 1945; offices, workshops, and a medical center were housed under the roof, which was up to 9.60 meters thick. It was built on the site of the former overseas port from which steamers departed for Central America.

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      Elevation 10 m

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      Wednesday 17 September

      20°C

      16°C

      0 %

      If you start your activity now...

      Max wind speed: 11.0 km/h

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      Location: Pays de la Loire, France

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