4.7
(39)
178
hikers
61
hikes
Hiking around Molosmes offers exploration of a gently rolling landscape in the Yonne department of Burgundy, France. The terrain is characterized by a mix of water, woods, and heathland, providing diverse natural features. Historic towpaths along the Canal de Bourgogne offer flat routes, while the surrounding limestone plateau contributes to features like the Fosse Dionne. This varied environment supports a range of hiking experiences.
Last updated: June 20, 2026
4.7
(3)
25
hikers
4.81km
01:15
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
3
hikers
6.96km
01:53
100m
100m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.0
(1)
3
hikers
5.58km
01:25
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.0
(1)
3
hikers
6.73km
01:43
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
2
hikers
20.6km
05:30
230m
230m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
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The Dionne pit is a karst source called the Vauclusian source, located in the city center of Tonnerre. It is fed by the infiltration of precipitation into the surrounding limestone plateau as well as by the losses of at least one river. The Dionne pit is remarkable for its flow and the size of its hydrogeological network which extends to more than 40 km. His presence is at the origin of the creation of the city of Tonnerre. An elaborate washhouse was built around the spring in the 18th century. Wikipedia
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A real must-see - this round wash house around a turquoise green source is unique in its kind and well worth the detour.
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The church in Tonnerre was dedicated to Saint Peter / “Saint-PIERRE”. Simon, nicknamed Peter (the word means "rock"), was a fisherman on the Sea of Galilee when he - together with his brother Andrew - was called by Jesus Christ to be "fishers of men". According to Catholic understanding, he is the supreme apostle, and the two millennia-long line of popes - currently Francis - are his successor. On statues and paintings, Peter is almost always depicted with two keys in his hand; this attribute refers to the biblical saying in Matthew: “I will give you the keys of the kingdom of heaven; Whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven” (Chapter 16, verse 19). Saint-Pierre is - together with Saint-Paul - also known as the “Princes of the Apostles”, their common feast day in the saints' calendar is on June 29th.
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The Hotel Dieu is the work of Marguerite de Bourgogne. it is the longest medieval hospital in Europe. It was built in the XIII century.
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The mystery of this pit is complete. The city was built around it.
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We enjoyed a remarkable guided tour.
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From the old stone bridge there is of course a beautiful view of the Armançon River. And a first look at the old town.
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The Mühlengasse is a nice walking connection from the park with the train station there to the old town. A scenic view of the Mill Canal is included.
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The Molosmes area offers a diverse landscape, characterized by a mix of forests, fields, and prairies. You'll find gently rolling hills, historic towpaths along the Canal de Bourgogne, and features shaped by the local limestone plateau, such as the Fosse Dionne. Many paths, including sections of former railway lines, are relatively flat with low elevation changes, making them accessible for various fitness levels.
Yes, Molosmes is well-suited for family hikes. Many trails feature low-gradient paths, making them enjoyable for all ages. An excellent option is the Tonnerre Lock – Burgundy Canal loop from Tonnerre, an easy 7 km path that follows the historic towpath, offering tranquil waterside views without significant climbs.
Generally, dogs are welcome on hiking trails in the Molosmes area. It's always recommended to keep your dog on a leash, especially when passing through agricultural areas, near livestock, or in nature reserves, to ensure their safety and respect local wildlife. Please also remember to clean up after your pet.
Yes, many of the hiking routes around Molosmes are designed as circular loops, allowing you to start and end at the same point. For example, the Saint Peter's Church – Notre-Dame Church loop from Tonnerre is a popular 4.8 km circular trail that takes you through the town of Tonnerre.
Hiking in Molosmes allows you to explore both natural wonders and historical sites. You can walk along the historic Towpath of the Canal de Bourgogne, observing well-preserved locks. The remarkable Fosse Dionne, a natural karst spring in nearby Tonnerre, is a significant natural feature. Additionally, trails often pass by charming villages and historic structures like the Notre-Dame Church.
The best time for hiking in Molosmes is typically during the spring (April to June) and autumn (September to October). During these seasons, the weather is generally mild and pleasant, with comfortable temperatures for walking. Spring brings blooming wildflowers, while autumn offers beautiful foliage. Summer can also be enjoyable, but it's advisable to start early to avoid the midday heat.
Parking is generally available in and around the villages that serve as starting points for many trails, such as Tonnerre or Saint-Martin-sur-Armançon. Look for designated parking areas near town centers or trailheads. Specific parking information might be available on individual route descriptions.
While many routes are easy to moderate, there are options for more challenging hikes. The Notre-Dame Church – Fosse Dionne loop from Saint-Martin-sur-Armançon is a more demanding 20.7 km trail, often taking around 5 hours 30 minutes to complete. This route leads through varied terrain and past the Fosse Dionne karst spring, offering a more extensive exploration of the region.
The hiking trails around Molosmes are highly rated by the komoot community, with an average score of 4.7 stars from over 40 reviews. Hikers often praise the diverse terrain, the tranquility of the canal towpaths, and the opportunity to combine natural beauty with historical exploration. The well-maintained paths and picturesque views of villages like Chemilly and Poilly-sur-Serein are frequently highlighted.
Yes, if you're looking for a shorter, easy walk, consider the Lock loop from Saint-Martin-sur-Armançon. This 5.6 km route is relatively flat and offers a pleasant stroll through the local landscape, perfect for a relaxed outing.
While not directly on every trail, the region's rich history means you're often close to significant sites. The impressive Château de Tanlay is located approximately 5.1 km from Molosmes, and some routes, like the Lock loop from Tanlay, start from the nearby village, allowing for a visit to the château before or after your hike.


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