Fosse Dionne and the town of Tonnerre in Burgundy
In the heart of the Yonne department in Burgundy, the village of Tonnerre is a charming and historic destination known for its famous spring, the Fosse Dionne.
Often overshadowed by more prominent wine-growing towns nearby like Chablis, Tonnerre nonetheless attracts thousands of visitors annually.
Where to stay in Tonnerre
- €€€ – Hotel du Centre
History
Tonnerre’s history dates back to ancient times, with traces of Roman settlements found in the area. During the medieval period, the village flourished under the patronage of the Dukes of Burgundy and became a key center for trade and pilgrimage.
One of its most notable historical figures was Marguerite de Bourgogne, who founded the famous Hôpital Notre-Dame des Fontenilles in the 13th century.
The town also played a role during the Hundred Years’ War and later became known for its thriving wine production.
Things to do
Fosse Dionne
One of the most intriguing natural wonders of Tonnerre is the Fosse Dionne. It is a natural spring that has captivated visitors for centuries.
This deep, blue-green water source emerges from a limestone cave and has been the subject of numerous legends. Once used as a public washhouse, the Fosse Dionne is now a popular attraction that continues to intrigue scientists due to its unexplored depths.
The village
The village is characterized by its traditional Burgundian houses, narrow cobbled streets, and scenic river views. One of the most impressive landmarks is the Church of Saint-Pierre on its hilltop.
The Hôpital Notre-Dame des Fontenilles is another must-see, with its impressive wooden ceiling and medieval medicinal gardens. Walking around, you’ll also discover plenty of quaint cafés, charming boutiques, and local bakeries.
Market days
Held twice a week on Wednesdays and Saturday mornings, the market brings together local farmers, artisans, and traders who offer a wide array of regional products. It is a great moment to pick up some souvenirs to take home.
The wine
the highest number of AOCs in France, with no less than 37 Grand Crus. Some of the most famous names in French wines like Chablis Grand Cru, Corton, and Clos de Vougeot come from Burgundy.
There are several tour companies taking visitors to visit the vineyards from Beaune. Red wines from Burgundy are usually made from pinot noir grapes, while white Burgundy wines made from chardonnay grapes.
Chablis (white wine) is the most famous name we tend to hear from Burgundy, and but Côte de Beaune also has an equivalent 7 white grand crus in the area. For reds, Côte de Nuits has 24 grand crus, mostly pinot noir reds that are some of the most expensive wines in the world.
Until 2017, all Burgundy wines were AOC/AOP wines, with Vin de Pays being a new appellation for this region. There are 5 main areas in Burgundy including Chablis, Côte de Nuits, Côte de Beaune, Côte Chalonnaise and Mâcon.
Some of the best Burgundy wines are:
You can read more about Burgundy wines here, and book a wine tasting tour here.
When is the best time to visit?
Tonnerre hosts several cultural and traditional events throughout the year, making any visit even more special. Some of the most popular festivals include:
- Fête de la Saint-Vincent (January): A celebration dedicated to the patron saint of winemakers, featuring wine tastings, parades, and traditional Burgundian festivities.
- Tonnerre en Fête (August): A lively event with fireworks, concerts, and street performances.