The best MTB trails around Les Ulis

There are nearly 400 mountain bike trails around Les Ulis, offering a wide range of options for all skill levels. This includes 86 easy routes, over 200 moderate routes, and almost 100 difficult routes.

The terrain around Les Ulis, particularly within the Parc Naturel Régional de la Haute Vallée de Chevreuse, is diverse. You'll find vast woods and forests, picturesque valleys, lush meadows, and winding rivers. This varied topography provides both challenging sections and more gentle paths.

Yes, Les Ulis offers local green spaces like North Park, which features woodlands, play areas, and a greenway suitable for family cycling. Within the broader Parc Naturel Régional de la Haute Vallée de Chevreuse, you can also find numerous beginner-friendly routes that are less demanding and enjoyable for families.

The region is rich in natural beauty. You can find scenic views of the Petite Vallée on routes like Beautiful descent – View of the Petite Vallée loop from Bures-sur-Yvette. The area also features several beautiful lakes, such as Ponds of Parc des Côtes Montbron and Trévoix Pond. You might also encounter remarkable natural monuments like The Oak of Petit Launay or The 11 Remarkable Oaks of Méridon Forest.

Yes, many trails in the area are designed as loops. For example, the difficult Viaduc de la Prédécelle – Fauvettes Viaduct loop from Orsay-Ville is a popular option. Another moderate loop is the Montjay Tunnel – Bassin de Coupières loop from Orsay-Ville.

The mountain biking experience around Les Ulis is highly rated by the komoot community, with an average score of 4.5 stars from over 1100 reviews. Reviewers often praise the varied terrain, the extensive network of trails, and the immersive natural experience offered by the Parc Naturel Régional de la Haute Vallée de Chevreuse.

Yes, the Parc Naturel Régional de la Haute Vallée de Chevreuse is home to several historical sites. You can find medieval castles like the Château de La Madeleine, which offers panoramic views, and other notable castles such as Breteuil, Courson, Saint-Jean de Beauregard, and Rambouillet, adding a cultural dimension to your ride.

Given the proximity to the Parc Naturel Régional de la Haute Vallée de Chevreuse, various parking options are available at trailheads and villages within the park. For routes starting directly from Les Ulis, local parks and residential areas may offer street parking or designated lots. It's advisable to check specific starting points for parking availability.

Les Ulis benefits from its location, and some starting points for trails within the Parc Naturel Régional de la Haute Vallée de Chevreuse are accessible via public transport, particularly train lines that serve towns like Saint-Rémy-lès-Chevreuse. From these points, you can often connect to the extensive trail network. Local buses might also provide access to certain areas.

Yes, for experienced riders seeking a challenge, there are nearly 100 difficult routes available. An example is the Path along the Ru des Vaux – Small bridge loop from Les Ulis, which is a demanding 84.6 km trail leading through varied natural settings. Another difficult option is the Bottom of the single – Méridon Castle loop from La Hacquinière.

The region is generally pleasant for mountain biking from spring through autumn. Spring offers lush greenery and moderate temperatures, while autumn provides beautiful fall foliage. Summers are also suitable, though it's wise to start earlier in the day to avoid the midday heat. Winter conditions can make trails muddy or slippery, so caution is advised.

Yes, within the Parc Naturel Régional de la Haute Vallée de Chevreuse, services like "L'Aiguillage" near Saint-Rémy-lès-Chevreuse offer a range of bike rentals, including e-bikes. This provides a convenient option if you don't have your own bike or wish to try an e-bike for exploring the trails.