Lys Forest and Royaumont Abbey Loop

This moderate 11.2-kilometer (7-mile) loop usually takes between 2 hours 52 minutes and 3 hours 15 minutes to complete, depending on your pace and how long you spend at points of interest.

The trail offers a varied terrain, including paved sections of asphalt and flat stones, as well as unpaved paths and pedestrian walkways. You'll traverse parts of the Forêt du Lys, agricultural paths, and may encounter a paved path (Chaussée de Baillon) that crosses marshes.

The primary highlight is the historic Royaumont Abbey, a significant Cistercian abbey with impressive medieval architecture. You'll also get views of the 17th-century Château de Baillon and its beautiful park, along with picturesque natural landscapes like the Oise River, Forêt de Carnelle, and agricultural fields.

While specific parking details for Boran-sur-Oise are not provided, it's generally advisable to look for public parking areas within the village or near the start of the loop. Check local signage upon arrival for designated hiker parking.

Information on direct public transport to the Boran-sur-Oise trailhead is limited. It's recommended to check regional bus services or train connections to nearby towns and then plan for a local connection or taxi to Boran-sur-Oise.

Generally, trails in natural areas like this are dog-friendly, but it's crucial to keep your dog on a leash, especially when passing through agricultural areas, near wildlife, or if entering specific historical sites. Always clean up after your pet.

The trail can be enjoyed year-round. Spring and autumn offer pleasant temperatures and beautiful foliage, while summer provides longer daylight hours. Winter hikes are possible, but be prepared for potentially muddy conditions on unpaved sections.

Hiking the loop itself does not require a permit. However, if you wish to fully visit the Royaumont Abbey, there is an entrance fee as it is a historical site. The park of Château de Baillon is accessible from the road without a fee.

When hiking within the Oise-Pays de France Regional Natural Park, it's important to respect local regulations. This typically includes staying on marked paths, not disturbing wildlife, keeping dogs on a leash, and taking all your waste with you. Always check the park's official website for the most current guidelines.

Yes, this route intersects with several other official trails. You'll find sections that are part of the Avenue Verte London ↔ Paris, Véloroute du Nord : Beaumont-sur-Oise - Beauvais, L’eau des moines, and Trans'Oise 11 (Baillon - Ver-sur-Launette), among others.

Boran-sur-Oise is a small village, and while specific establishments are not detailed, you may find local cafes or small eateries. Near Royaumont Abbey, there might be options catering to visitors. For more extensive choices, consider nearby larger towns.