Our visit options   Formula 1 : The Gallery of Machines Duration of the visit : 1h30 approx. (1h in the Gallery; ½h exploring the gangways above the Workshop, the branch, and the site) Children group : 15 to 25 people maximum (including free admission for 3 group leaders) Prices : Under 18’s : 3 € Handicapped access.     Formula 2 : The trip in the Elephant Duration of the visit : 1h30 approx. (1h in the Elephant; ¾ h exploring the terraces of the Workshop, the branch, and the site) Children group : 15 to 26 people maximum (including free admission for 3 group leaders) Prices: Under 18’s: 4 € Handicapped access : 1 seat per trip.   You can combine formulas 1 and 2, subject to space availability and opening hours of the Gallery and the Elephant.   Information & booking for groups Advance booking is compulsory for all group visits.   From Monday to Friday from 9h to 12h and 14h to 17h Nantes culture&patrimoine Group booking service By telephone : +33(0)2.51.17.49.88 (children groups only) By fax : +33(0)2.51.17.48.65 By e-mail : resascolaires@lesmachines-nantes.fr                                                                   By post : Nantes culture&patrimoine - Group booking service - 1-3 rue Crucy - BP 92211 – 44 022 Nantes cedex 1