On Sunday 20 September 2026, TaM (Transports de l'Agglomération de Montpellier) invites the public to visit its Centre for Operation and Maintenance of Swallows (CEMH), located in the Mosson district of Montpellier — a site normally closed to the public.
The day's programme is designed for families and includes guided tours, activities and discovery sessions focused on the trades and infrastructure that keep Montpellier's transport network running.
The event is free and open to all as part of the European Heritage Days 2026.