The Crayères of Reims: The Hidden Underground Cathedrals of Champagne

Discover the UNESCO-listed underground heritage of Reims

Deep beneath the city of Reims in the Champagne region of France lies one of the most extraordinary and underrated historical treasures in Europe: the Crayères of Reims. These vast underground chalk cellars are not only a masterpiece of engineering, but also a vital part of the global champagne industry. Carved into the soft chalk millions of years ago, they now form an underground world stretching for over 250 kilometers of tunnels, some reaching depths of 30 meters below ground.

Recognized as part of the UNESCO World Heritage-listed Champagne Hillsides, Houses and Cellars, the crayères are an essential stop for anyone interested in wine tourism, history, and unique cultural experiences in France.

What are the Crayères of Reims?

The word crayère comes from the French word for chalk (craie). These underground chalk pits were originally excavated by the Romans more than 2,000 years ago to extract building material for the ancient city of Durocortorum, now known as Reims.

Over time, these abandoned chalk quarries were transformed into natural wine cellars thanks to their perfect conditions:

Constant temperature of around 10–12°C (50–54°F)

High humidity ideal for aging wine

Complete darkness for optimal champagne maturation

This unique environment makes them one of the most important natural aging spaces for champagne in the world.

A Historic Underground Network Used by Champagne Houses

During the 18th and 19th centuries, Champagne producers discovered that these underground tunnels were perfect for storing and aging their sparkling wine. Today, many of the world’s most prestigious champagne houses still use the Crayères of Reims for this purpose.

Some of the most famous champagne houses that open their doors to visitors include:

• Moët & Chandon

• Veuve Clicquot

• Taittinger

• Pommery

• Ruinart

Each of these houses offers guided tours where visitors can descend into the historic cellars and witness millions of bottles slowly aging in silence underground.

An Architectural Wonder Beneath the Surface

Walking through the Crayères of Reims feels like entering an underground cathedral. Some tunnels are vast, with ceilings carved into dramatic arches, while others are narrow passageways filled with thousands of bottles stacked in perfect symmetry.

One of the most impressive examples is the cellars of Maison Pommery, which feature monumental underground chambers decorated with sculptures and contemporary art installations. This fusion of history and modern creativity makes the experience

unforgettable.

The Birthplace of Champagne Aging Tradition

The Crayères are not just storage spaces; they are the birthplace of the traditional method of champagne aging. The stable underground conditions allow:

• Slow fermentation of champagne

• Development of fine bubbles

• Complex aromas and refined taste profiles

Without these chalk cellars, the global reputation of Champagne as a luxury sparkling wine would not exist in its current form.

Why the Crayères of Reims Are a Must-Visit in Champagne

Visiting the Crayères offers a rare combination of:

• History dating back over 2,000 years

• UNESCO World Heritage cultural significance

• Exclusive access to world-famous champagne houses

• A unique underground landscape unlike anywhere else in the world

It is one of the most immersive experiences in the Champagne region and a highlight for tourists visiting Reims and surrounding vineyards.

Explore Champagne with a Local Expert

The Champagne region is full of hidden gems, prestigious champagne houses, and unforgettable landscapes, but navigating it all can be overwhelming for visitors.

I specialize in creating custom travel itineraries in Champagne, helping travelers discover the best champagne houses, underground cellars, vineyards, and authentic local experiences tailored to their interests.

Whether you want private tastings, cellar tours, or a full Champagne day trip, I can help you plan and book the perfect stay.