Best canyons around Thomery are characterized by unique geological formations and historical features rather than traditional deep gorges. The area, bordering the Fontainebleau Forest, is known for its distinctive sandstone ridges and periglacial geomorphological evolution. Thomery itself is recognized as a "Village de caractère" due to its remarkable built and natural heritage. This region offers various hiking opportunities and natural attractions, including paths with canyon-like ambiances.
Last updated: May 9, 2026
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Attention ⚠️ viewpoint accessible by Bleu Denecourt pedestrian path.
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The cave of the oath is quite surprising, especially because the vault is made of a single rock. The letters D.F.D were engraved on the cave by Denecourt himself and mean "Last Madness Denecourt".
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Forming a bottleneck where several paths meet. A magnificent landscape in all seasons. The pleasure of riding here!
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Very nice point of view, the forest, the rocks, it's just beautiful :)
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It's a great passage on the sidelines of the Denecourt-Colinet trail n ° 8, where we slalom between the rocks! It is as beautiful as it is fun.
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The Oath Cave is quite surprising, especially because the vault is made of a single rock. The letters D.F.D were engraved on the cave by Denecourt himself and mean "Last Folie Denecourt".
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Walk to the acute mountain, near the pheasant farm in Fontainebleau. The cave of the oath to see, in full course, one does not expect it and yet.
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The Thomery area, bordering the Fontainebleau Forest, offers unique 'canyon-like' experiences rather than traditional deep geological canyons. You'll find distinctive sandstone ridges, periglacial formations, and historical paths that create an enclosed, canyon-like ambiance. These include natural gorges and a notable historical path known as the Chemin des Longs Sillons.
You can explore several natural features. The Grotte du Serment is a natural monument featuring a cave with a vault made of a single rock, famously engraved by Denecourt. Another engaging spot is Gorges du Houx, where you can navigate between rocks within a forest setting. For expansive views, the Apremont Gorges Panorama offers breathtaking vistas of the surrounding vegetation.
Yes, Thomery is rich in history. The most prominent historical 'canyon-like' feature is the Chemin des Longs Sillons. This public footpath winds between tall, ancient walls, some reaching 2.5 to 3 meters high. These walls were built starting in the 18th century for the cultivation of 'Chasselas de Thomery' grapes using an espalier technique. Designated as a 'monument historique' since 1993, it offers a unique glimpse into the region's viticultural heritage. Thomery itself is recognized as a 'Village de caractère' due to its remarkable heritage.
Beyond exploring the gorges, the region around Thomery offers various outdoor activities. You can find numerous cycling routes, including touring bicycle and road cycling options, with guides like Cycling around Thomery and Road Cycling Routes around Thomery. Mountain biking enthusiasts can also find trails, as detailed in the MTB Trails around Thomery guide.
Absolutely. The Apremont Gorges Panorama provides extensive views of the surrounding wooded landscape, offering a broad perspective. Another pleasant spot is the View of the Gorges in the Fontainebleau and Gâtinais Biosphere Reserve, which offers an unexpected and expansive vista, perfect for resting and enjoying the scenery.
Visitors particularly enjoy the unique blend of natural beauty and historical significance. The Grotte du Serment is often described as surprising due to its single-rock vault. The Gorges du Houx is appreciated for being both beautiful and fun, allowing visitors to slalom between rocks. The Chemin des Longs Sillons offers a distinctive, almost canyon-like ambiance enveloped by history. The komoot community has shared over 40 photos and given more than 160 upvotes to various highlights in the area, indicating a high level of appreciation for these unique spots.
Yes, the Chemin des Longs Sillons is a public footpath. It is 645 meters long and 3 to 5 meters wide, winding between the historic vineyard walls. It provides a unique walking experience through private gardens in areas like Longs-Sillons, Merisiers-Coquins, Rentières, and Folies.
Yes, in addition to the popular spots, you can also explore Gorge aux Néfliers – Route du Milan. This gorge forms a bottleneck where several paths meet, offering a magnificent landscape throughout the seasons and a pleasant experience for riding or walking.
While the guide doesn't specify a single 'best' time, the region's natural beauty, especially the wooded areas and gorges, can be appreciated in all seasons. For instance, the Apremont Gorges Panorama is noted to have a different and surprising view in winter, suggesting year-round appeal. The historical Chemin des Longs Sillons is also accessible year-round.
Many of the gorges are part of established trails. For example, the Gorges du Houx is a great passage found on the sidelines of the Denecourt-Colinet trail n°8. These trails often allow you to navigate between rocks and experience the unique geological formations firsthand.
Thomery has been labeled a 'Village de caractère' due to its remarkable built and natural heritage. This includes its unique viticultural history, exemplified by the Chemin des Longs Sillons, and its proximity to the natural landscapes of the Fontainebleau Forest, which features distinctive sandstone ridges and periglacial formations.


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