Located in Ambierle, in the Loire region, the Collonge Tunnel is a former railway tunnel transformed by Maison Mons into an exceptional space dedicated to aging our hard cheeses. A unique setting where tradition meets modernity, offering an ideal environment for both professional and private events.
We offer a guided tour of the tunnel, allowing you to discover the history of this remarkable site and the unique cheese-aging process we use. This experience can be enhanced with a tasting or a cheese-based meal, depending on the package chosen — combining local discovery with a warm, convivial atmosphere.
The Collonge Tunnel welcomes you into a warm and inviting space, fully equipped for business meetings, seminars, and other professional gatherings. This distinctive and history-rich location becomes a real asset for your events and moments of connection.
Booking Information
The Collonge Tunnel is accessible by reservation only, with a minimum of 15 and a maximum of 25 people. For any specific requests or to reserve your spot, please contact us directly.
- General public offer: Suitable for small groups, with fixed dates available on our website.
- Group offer: From 15 people, on the date of your choice, subject to availability.