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Jagny-Sous-Bois

Top 4 Natural Monuments around Jagny-Sous-Bois

Best natural monuments around Jagny-Sous-Bois are found within the Oise-Pays de France Regional Natural Park, offering diverse landscapes in the Val-d'Oise department. The area features views over the Ysieux valley, secondary valleys, and small woods. This region combines historical sites with natural environments, providing varied outdoor experiences.

Best natural monuments around Jagny-Sous-Bois

  • The most popular natural monuments is Étangs de Commelles, a lake that is part of the Chantilly forest and a protected site rich in biodiversity. Historically, these…

Last updated: July 16, 2026

The Blue Lake of Carnelle

Highlight • Forest

Lac Bleu is one of the two bodies of water in the Carnelle forest. On sunny days, its name takes on its full meaning. But there is another reason for …

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Étangs de Commelles

Highlight • Lake

The ponds of Commelles are part of the beautiful forest of Chantilly and therefore of the Regional Natural Park Oise-Pays de France It is a protected site, rich in biodiversity, …

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Covered alley

Highlight • Historical Site

This funerary megalith dates back to the beginning of the Neolithic period! It is the largest and most famous of all the covered alleys in the Paris region, which has …

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La Pierre Longue Menhir

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A 3-meter-high isolated menhir, made of sandstone, with a typical shark's fin shape, suggesting that a part has been broken.

Accessible by walking along the wood in the field, it is visible from the field or the woods.

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Carnelle Spring

Highlight • Natural Monument

Be careful, I don't know if it is still drinkable. If someone has the info, please leave a message.

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Tips from the Community

RedSkirrel
July 16, 2026, Étangs de Commelles

A magnificent place not to be missed

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What is to be remembered from this route is the passage through the Carnelle forest. However, there are too many roads on the Isle Adam and along the Oise. No particular difficulty.

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pretty lake hidden in the middle of the forest

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A 3-meter-high isolated menhir, made of sandstone, with a typical shark's fin shape, suggesting that a part has been broken. Accessible by walking along the wood in the field, it is visible from the field or the woods.

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Vince
May 21, 2022, Allee couverte

This funerary megalith dates back to the beginning of the Neolithic period! It is the largest and most famous of all the covered alleys in the Paris region, which has become the archetype of burials associated with the Seine-Oise-Marne culture. All the slabs are in Fontainebleau sandstone, several outcrops of which are visible on the hillside.

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The ponds of Commelles are part of the beautiful forest of Chantilly and therefore of the Regional Natural Park Oise-Pays de France It is a protected site, rich in biodiversity, with thousands of frogs in March. In the 19th century, the ponds were frequented by romantic artists and authors such as Chateaubriand.

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Lac Bleu is one of the two bodies of water in the Carnelle forest. On sunny days, its name takes on its full meaning. But there is another reason for the name of this lake from ancient quarries. The rock at the bottom is a mixture of gypsum and marl. The color is changing due to algae, but originally it is deep blue. Around the lake, one can appreciate oaks, beeches and chestnuts. A feast for the eye!

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Vince
December 19, 2021, Le Lac Bleu de Carnelle

The Blue Lake, like the small pond located a few dozen meters away, has been built in old marl quarries, which give the water a bluish color. For this reason, they reach a depth of 20 to 30 m and swimming is prohibited there for safety reasons. On the other hand, you can go fishing there. The ponds have replaced the quarries, and the presence of green marls, which color their bed, explains their astonishing variation in color. Going from turquoise blue to emerald green, depending on the depth, the time of day, the intensity of the light.

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Frequently Asked Questions

What are the most popular natural monuments around Jagny-Sous-Bois?

Among the most popular natural monuments in the region, you'll find the tranquil Étangs de Commelles, known for their rich biodiversity and historical significance. Another highly regarded spot is The Blue Lake of Carnelle, famous for its striking color and peaceful forest surroundings.

Which natural monuments are suitable for families with children?

Several natural monuments are family-friendly. Both the Blue Lake of Carnelle and the Étangs de Commelles are excellent choices, offering easy walks and opportunities to observe nature. The Covered alley, a fascinating historical site, is also suitable for families.

What natural features can I expect to see around Jagny-Sous-Bois?

The region boasts diverse natural features, primarily centered around serene lakes and dense forests. You can explore the unique blue hues of The Blue Lake of Carnelle, surrounded by oaks, beeches, and chestnuts, or the biodiverse Étangs de Commelles, home to thousands of frogs in March. The area also features secondary valleys and small woods.

Are there any historical or cultural sites among the natural monuments?

Yes, the region blends natural beauty with historical significance. The Covered alley is a notable funerary megalith dating back to the Neolithic period, considered the largest and most famous of its kind in the Paris region. Additionally, La Pierre Longue Menhir is a striking 3-meter-high sandstone monument with a typical shark's fin shape.

What is the best time of year to visit the natural monuments?

Spring and autumn are particularly beautiful seasons to visit. In March, the Étangs de Commelles come alive with thousands of frogs. Autumn offers vibrant foliage around lakes like The Blue Lake of Carnelle. The tranquil environment makes them enjoyable year-round for walkers seeking peace and natural beauty.

Are there hiking or running trails near these natural monuments?

Absolutely. The natural monuments are often integrated into broader trail networks. For instance, you can find various running trails and MTB trails around Jagny-Sous-Bois that pass by or near these sites. The Étangs de Commelles, within the Chantilly forest, are a popular spot for walkers.

Can I bring my dog to the natural monuments?

Many natural areas in the Oise-Pays de France Regional Natural Park, including those around Jagny-Sous-Bois, are generally dog-friendly, especially on trails and in forests. However, it's always recommended to keep dogs on a leash to protect local wildlife and ensure a pleasant experience for all visitors. Specific restrictions might apply in certain protected zones, so look for local signage.

Is parking available at the natural monuments?

Yes, parking is generally available near the more popular natural monuments and trailheads. For example, areas around the Chantilly forest (where the Étangs de Commelles are located) and the Carnelle forest (home to The Blue Lake of Carnelle) have designated parking spots for visitors.

How much time should I allocate to explore the natural monuments?

The time needed varies depending on the monument and your activity. For a leisurely walk around a lake like The Blue Lake of Carnelle or the Étangs de Commelles, you might spend 1-2 hours. If you plan to combine a visit with a longer hike or explore multiple sites, a half-day or full day would be more appropriate.

Are there any unique geological formations to see?

Yes, the region offers interesting geological aspects. The Blue Lake of Carnelle, for instance, gets its striking color from the gypsum and marl rock at its bottom, a result of ancient quarries. The Covered alley is constructed from Fontainebleau sandstone, with outcrops visible on the hillside, showcasing local geological materials.

What outdoor activities can I do near these natural monuments?

Beyond walking and hiking, the area around Jagny-Sous-Bois offers various outdoor activities. You can enjoy gravel biking or mountain biking through the forests, with routes often passing by the natural monuments. The lakes are also popular for observing fishermen and enjoying the peaceful environment.

Are there places to eat or drink near the natural monuments?

While the natural monuments themselves are often in serene, undeveloped areas, you can find cafes and restaurants in nearby towns and villages. Jagny-Sous-Bois and surrounding communities offer options for refreshments and meals before or after your visit to the natural sites.

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Extend your search for the best caves by checking out these guides of the top ones around Jagny-Sous-Bois:

MaffliersSaint-Martin-Du-TertreBouffémontBaillet-En-FranceMontsoultDomontAttainvilleVillaines-Sous-BoisBelloy-En-FranceMoissellesAsnières-Sur-OiseAndillyLe Mesnil-AubryÉzanvilleVilliers-Le-SecLuzarchesChaumontelNoisy-Sur-OiseÉcouenLassyÉpinay-ChamplâtreuxViarmesSeugyMontmagnyDeuil-La-BarreSaint-GratienEnghien-Les-BainsMareil-En-FrancePiscopLe Plessis-LuzarchesVémarsSaint-WitzSurvilliersMarly-La-VilleFosses

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