Best natural monuments around Nerville-La-Forêt are situated within the Val-d'Oise department, characterized by extensive forested areas such as the Forêt Domaniale de l'Isle-Adam and Forêt de Montmorency. These natural landscapes provide diverse opportunities for outdoor recreation and hold ecological significance. The region features a combination of natural features and ancient human-made structures integrated into the environment.
Last updated: July 4, 2026
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Very nice trail running outing in the forest 🌳
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The fountain is on a small bend, be careful because it is quickly invaded by plants
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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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High place of pilgrimage (in the region anyway) between the 15th and 18th centuries. The water from this fountain was said to have the power to cure various skin diseases (scabies for example). This pilgrimage ceased shortly before the French Revolution.
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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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in a beautiful forest we arrive there with a magnificent sun which warms up a little
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This bucolic path runs along the Stors marsh nature reserve. The ground quickly becomes muddy in bad weather and the days following the rain. That said, the setting is beautiful along the rock faces. For the rest, it's a fairly easy single.
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Visitors frequently enjoy the Singletrack along the Marais de Stors, known for its diverse environments and rich flora and fauna, offering a mix of easy singletrack and descents. Another favorite is The Blue Lake of Carnelle, famous for its striking deep blue color, especially on sunny days, and surrounded by beautiful oaks, beeches, and chestnut trees.
Yes, The Blue Lake of Carnelle is considered family-friendly, offering a beautiful setting within the Carnelle forest. Additionally, the Covered alley, a significant Neolithic funerary megalith, is also suitable for families to visit and explore.
The region offers unique insights into its past. You can visit the Pierre de Lait Polishing Stone, a sandstone block used as a polisher in the Neolithic period, offering a tangible link to prehistoric times. Another significant site is the Covered alley, a funerary megalith dating back to the early Neolithic period, considered the largest and most famous of its kind in the Paris region.
Nerville-La-Forêt is primarily characterized by its extensive forest environment, notably being at the edge of the L'Isle-Adam forest. Key natural features include the serene Blue Lake of Carnelle, and the ecologically rich Marais de Stors nature reserve, which features diverse environments and rock faces.
The area around Nerville-La-Forêt is excellent for various outdoor activities. You can explore numerous hiking trails, with options like the 'Goat Meadow' loop. For cyclists, there are routes such as the 'L'Isle Adam – Auvers-sur-Oise loop'. Runners can also find trails like the 'Remarkable trees – Montsoult church loop'. You can find more details and routes in the hiking guide, cycling guide, and running guide for the region.
Yes, many hiking trails in the region allow you to discover these natural monuments. For instance, the Singletrack along the Marais de Stors is a popular trail itself, offering scenic views along rock faces. The Pierre de Lait Polishing Stone is located in a beautiful corner of the forest, accessible via small paths. You can find more hiking options in the hiking guide around Nerville-La-Forêt.
The natural monuments, especially those within the forests like The Blue Lake of Carnelle, are particularly beautiful on sunny days when their colors are most vibrant. Spring and autumn offer pleasant temperatures for hiking and enjoying the changing foliage. While some paths, like the Singletrack along the Marais de Stors, can become muddy in bad weather or after rain, the natural beauty persists year-round.
Visitors frequently highlight the tranquility and beauty of the forest settings. They appreciate the unique natural features like the deep blue color of The Blue Lake of Carnelle and the rich biodiversity of the Marais de Stors. The historical significance of sites like the Pierre de Lait Polishing Stone also leaves a lasting impression, offering a sense of connection to ancient times.
Yes, the Saint Radegonde Fountain in the Montmorency forest is a notable example. It was historically a site of pilgrimage, with its water believed to have healing properties. This beautiful fountain offers a blend of natural charm and intriguing local legend.
The terrain around Nerville-La-Forêt is varied, primarily consisting of forest paths. You'll find easy singletracks, some descents with roots, and paths winding through wooded areas. Some sections, especially near the Marais de Stors, can be muddy after rain. The presence of sandstone, as seen at the Covered alley, also indicates some rocky elements in the landscape.
Yes, The Blue Lake of Carnelle is considered a viewpoint, offering picturesque scenes of the lake and its surrounding forest. The Singletrack along the Marais de Stors also provides beautiful settings along rock faces, making it a scenic route for nature observation.
The time required varies depending on the monument and your activity. For instance, a visit to The Blue Lake of Carnelle or the Pierre de Lait Polishing Stone might take an hour or two, especially if combined with a short walk. Exploring the Singletrack along the Marais de Stors could be a longer activity, depending on the length of the trail you choose to cover.


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