Basilique de Longpont walks

This hike follows the route of the T12 tram-train, connecting Massy-Palaiseau to Évry-Courcouronnes, and allows you to discover a varied landscape combining urban areas, natural spaces and neighbourhoods undergoing rapid change. The route takes you along the greenway that runs alongside the T12, between Épinay-sur-Orge station and the Évry-Courcouronnes terminus, offering a pleasant and safe section for pedestrians and cyclists. This walk offers an immersion in the areas served by this new line, with opportunities to stop at the various stations to fully enjoy the local heritage and green spaces.

A varied hike where you gain altitude. First, you climb up to the Saclay plateau and walk along the university campus before gently descending into the Yvette valley through the forest. We climb back up the other bank and cross the Gif-sur-Yvette forest from east to west. After an urban section, we walk between fields before descending back into the forest to Saint-Rémy-lès-Chevreuse.

Hike connecting Igny (Essonne) to the Palace of Versailles. The route follows the Bievre, and 80% of the route is on roads through forests. A calm, cool walk with scenery that will leave you with a unique souvenir.

Although densely urbanised, the Hauts-de-Seine department offers wonderful opportunities for walkers, with a rich heritage and often a little elevation. This series of hikes, almost all of which are accessible by public transport, takes you on a journey of discovery through this department, avoiding major roads as much as possible and favouring footpaths and alleys, public parks and wooded areas.

This hike crosses Parc de Sceaux and the Verrières National Forest, then continues along the Bièvre, whose valley has been developed with numerous sports and leisure facilities. The presence of so many green spaces is surprising in an otherwise highly urbanised region.

A hike from station to station in a semi-urban environment, following paths through gardens and pleasant riverside trails.

A hike from station to station where you play leapfrog with the Yvette River! The route is mostly close to the river and crosses a few woods and pretty parks, including the one in the western part of the Paris-Sud University campus.

A hilly route from station to station, mainly through farmland for the first two-thirds, then through more wooded areas. Beautiful churches and rural heritage can be found in the villages along the way. In Dourdan, the walk along the Orge river, the 12th-13th century church and the fortified castle provide a superb finishing touch.

This hike is certainly the most "aquatic" of those that can be undertaken along the Essonne. Indeed, numerous ponds punctuate the route: ponds for fishing or other forms of leisure; ponds and marshes that make up a protected natural area, a source of biodiversity and a place to observe wildlife.

After following paths through the town, this walk from station to station offers the chance to discover the Meudon Observatory and admire the sweeping views from the terrace of its park. The rest of the route is mainly through forest.