What? An exceptional opening day of 13 projects on 4 lines (15 Sud, 16, 17 and 18) of the Grand Paris Express under construction. Who? The Major Projects Company, in collaboration with construction companies. When? Saturday, September 20, 2025, from 09:30 to 17:30. Where? On 13 future stations of the Grand Paris Express, complete list of stations open for visits: https://www.grandparisexpress.fr/evenements How? Guided tours, free, accessible without registration. Why? See 'behind the palisade' and understand the daily life of construction sites. Discover the scope of the Grand Paris Express project and its future benefits. Meet those who build it. Practical information: Visit from 1h to 1h30 Reception, equipment and safety instructions Presentation of the Grand Paris Express, the station and the works. Secure route and guided tour to the docks Informations From 6 years old. Plan an outfit suitable for a site visit (closed shoes, legs and arms covered). The visit requires a good physical condition (many floors to climb on foot). Groups of 20/25 people maximum.

Address
Boulevard Newton 77420 Champs-sur-Marne, Seine-et-Marne, Île-de-France, France