Chaalis Abbey and Ermenonville Forest Loop

This is considered a difficult hike, spanning approximately 23.3 km (14.5 miles) with an estimated duration of 6 hours and 7 minutes. It involves an elevation gain and loss of around 180 meters. Hikers should have very good fitness and sure-footedness is recommended, especially due to the sandy terrain.

The dominant feature of the terrain is its sandy nature, particularly within the Ermenonville forest. You'll traverse paths through Scots pines and ferns, as well as areas of heathland interspersed with birch trees. While generally accessible, the sandy ground can present a unique challenge. There are gentle descents and some inclines.

The primary highlight is the Chaalis Abbey, a historic Cistercian abbey with impressive ruins, a cloister, and the Chapel of Sainte-Marie featuring Renaissance frescoes. The estate also houses the Musée Jacquemart-André and a remarkable rose garden. You'll also pass by the Jean-Jacques Rousseau Park and the Pond of the Royal Abbey of Fontaine-Chaalis.

Specific parking information for the exact trailhead isn't provided, but generally, parking is available near Ermenonville or the Abbaye de Chaalis itself. It's advisable to check local signage upon arrival for designated parking areas.

The Ermenonville forest offers varied beauty throughout the seasons. Spring and autumn are often ideal for hiking, with pleasant temperatures and beautiful foliage. Summer can be warm, but the forest provides shade. Winter hiking is possible, but be prepared for colder, potentially damp conditions.

Generally, dogs are permitted on trails within the Ermenonville forest. However, it's crucial to keep them on a leash to protect local wildlife and ensure a pleasant experience for all hikers. Specific rules may apply within the grounds of the Abbaye de Chaalis or Jean-Jacques Rousseau Park, so check local signage.

Hiking in the Ermenonville forest typically does not require a permit or entrance fee. However, there is an entrance fee to access the grounds of the Abbaye de Chaalis, which includes the Musée Jacquemart-André and the gardens. Check the official website for current pricing and opening hours before your visit.

Yes, this route incorporates sections of several other official trails. You'll find yourself on parts of L'Abbaye de Chaalis, En Forêt des Abbayes, Ermenonville - Une atmosphère de lande, and Sentier des Ecrivains, among others.

Given its length (23.3 km) and 'difficult' grading, this specific loop is generally not considered suitable for young children or families seeking an easy outing. Shorter, less strenuous loops are available in the wider Ermenonville forest area if you're looking for a more family-friendly option.

You can find refreshment options near the Abbaye de Chaalis, particularly within its estate or in the nearby village of Ermenonville. It's always a good idea to check opening times in advance, especially outside of peak tourist season.

The sandy terrain, especially prevalent in the Ermenonville forest, can make hiking more strenuous than on firm ground. It's advisable to wear appropriate footwear with good ankle support to prevent fatigue and potential slips. Be prepared for your shoes to get sandy!

The full 23.3 km loop is not wheelchair accessible due to its varied and sandy terrain. However, some paths within the grounds of the Abbaye de Chaalis or the Jean-Jacques Rousseau Park might offer more accessible sections. It's best to inquire directly with the sites for specific accessibility information.