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The tiny French village near Paris that has a secret ‘underground city’

Published on May 17, 2025 at 08:01 AM

NAOURS might look like your classic French village, but underneath is a labyrinth of secret tunnels.

There are around 300 chambers beneath the surface that have since become a popular tourist attraction.

Interior of the Naours Caves, showing a network of tunnels and chambers carved into rock.
There are almost two miles worth of tunnels under Naours
Stone table in a Naours grotto with a stone wall and plaque.
The tunnels were used as hideouts during wars

Naours is a quiet village two hours outside of – and in 2022, just 1,055 people called it home.

It does get some visitors though who go to see the La Cité Souterraine De Naours – the underground tunnels.

They date back to the 3rd century and were used up until the 17th century as a place for locals to hide from intruders during invasions.

In the end, the tunnels became a complex system of caves and rooms, including chapels, piazzas, and even a bakery with ovens.

The underground city was rediscovered in 1887.

The tunnels are 106 feet below ground and the pathways linking these run for between one and two miles in a westerly direction and under the streets of Naours.

The Naours tunnels were used during , particularly by the French and Australian soldiers as a hideout.

If you visit today, you’ll be able to see graffiti throughout the caves.

One visitor said: “One of the most amazing natural cave systems in the world, the connection to 1st and 2nd World War is very interesting, knowledgeable guides and easy access, well worth a stop.”;;

A guided tour of the underground city of Naours costs€13 (£11.04) per adult.

Shops and houses along a canal in Saint Leu, Amiens.
Amiens has been called the “Venice of France”;;

Naours is easy to get to from the UK as it’s a 1hr 40 drive from or two hours from .

Lots of reviews on recommend seeing the tunnels, especially if you’re visiting the nearby city of Amiens.

Amiens is 25-minutes away from Naours, and 75 miles north of .

Amiens is divided by the Somme river and is known for its Gothic Cathedral and medieval bell tower.

Shops and cafes line the Quartier St. Leu’s narrow streets and there are floating market gardens in the canals – which are called ‘hortillonnages’.

In fact because of this, Amiens is known as the “Venice of ”;; by those in the know.

You can take a stroll along the waterfront at any time of year and it will be fairly uncrowded – despite the excellent French that line the route.

Check out the .

And another .

Wooden windmill against a blue sky.
Naours has a hidden city underneath the town

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