4.5
(24)
85
hikers
04:05
14.5km
300m
Hiking
Hike the moderate 9.0-mile Tour of the Forêt de Carnelle, exploring diverse forests, prairies, and the unique Lac Bleu near Paris.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
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3.56 km
Highlight • Other
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Tip by
4.46 km
Highlight • Other
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Tip by
7.41 km
Highlight • Forest
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Tip by
14.5 km
End point
Parking
Way Types & Surfaces
Way Types
6.38 km
3.77 km
2.60 km
1.24 km
497 m
Surfaces
7.04 km
4.06 km
1.67 km
1.16 km
543 m
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Elevation
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Weather
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Monday 11 May
15°C
3°C
12 %
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Max wind speed: 15.0 km/h
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This route was planned by komoot.
This hike is generally considered to be of moderate difficulty. While many sections are accessible, there are some climbs, such as the ascent to the Carrefour de Carnelle, which can be challenging. The tour covers approximately 14.5 kilometers and typically takes around 4 hours and 5 minutes to complete.
The terrain is quite varied, offering a diverse experience. You'll encounter a mix of dense forests, open prairies, and even pass through towns and villages. The forest is situated on a butte, leading to varied landscapes with some steep slopes. Expect paths through oak, beech, and chestnut trees, and potentially some wetlands. Some parts might require careful navigation, especially during wet conditions.
The route offers several interesting sights. You'll pass by the historic Church of Saint Germain of Auxerre and the unique The Blue Lake of Carnelle, a former quarry now fed by springs. Keep an eye out for the Alpaca farming highlight, and the significant Neolithic dolmen, La Pierre Turquaise, which is one of the best-preserved prehistoric monuments in Île-de-France.
Yes, the Forêt de Carnelle is generally dog-friendly. Dogs are typically allowed on trails, but it's always best to keep them on a leash to protect wildlife and ensure a pleasant experience for all hikers. Please remember to clean up after your pet.
The Forêt de Carnelle is beautiful year-round, but the best times to hike are typically spring and autumn. In spring, the forest comes alive with fresh greenery and wildflowers, while autumn offers stunning foliage colors. Summer can be pleasant, especially in the shaded forest sections, but be prepared for warmer temperatures. Winter hikes are also possible, offering a different, serene atmosphere.
No, there are generally no permits or entrance fees required to hike in the Forêt de Carnelle or within the Parc naturel régional Oise - Pays de France. The forest is publicly accessible, and its trails are free to use. However, always respect local regulations and leave no trace.
While specific trailhead parking isn't detailed, the Forêt de Carnelle is well-maintained and offers numerous access points. Look for parking areas near the towns bordering the forest, such as Saint-Martin-du-Tertre or Viarmes, which often have designated spots for forest visitors. Public transport options are also available to reach the vicinity of the forest.
The forest is home to a diverse array of wildlife. You might spot deer, wild boar, red deer (which have migrated from the Chantilly forest), foxes, badgers, and rabbits. The lakes, such as The Blue Lake, are populated by fish like roach and carp. Keep an eye out for various bird species as well.
Yes, this route intersects with and utilizes sections of several other trails within the forest. You'll find yourself on parts of official trails such as La forêt de Carnelle, Circuit de Belloy – Saint-Martin, L’eau des moines, and various 'Route Forestière' paths like Route de la Touffe and Route du Meurisier des Pierres.
The Forêt de Carnelle is well-maintained by the ONF (National Forests Office) and offers numerous picnic spots throughout. While there might not be specific facilities directly on the trail, the nearby towns and villages provide cafes, pubs, and accommodation options. It's advisable to carry sufficient water and snacks for your hike.
Yes, the Tour of the Forêt de Carnelle is generally considered suitable for families, given its moderate difficulty. While there are some climbs, many sections are accessible and enjoyable. The varied scenery and points of interest like The Blue Lake and La Pierre Turquaise can keep younger hikers engaged. Just be mindful of the overall distance and elevation gain for younger children.