You probably know its industrial zone. A few decades ago, Plan-les-Ouates lived to the rhythm of its farms and fields. For its 175th anniversary, the town tells its story in two voices.

Maurice Gardiol has lived here for almost fifty years and received the town's civic merit award. He takes you from the town hall to the mosque, from the church and its stained-glass windows to the new neighbourhoods, sharing stories you won't find in any guidebook.

Alongside him, Sylvia Graa, a guide specialising in watchmaking, explains why the great watchmaking houses chose to settle here.

To round off the morning, a local resident opens the doors of her historic house for an aperitif.

Meeting point at 9.30am at the "Place des Aviateurs" stop of bus 80. Walk of about 1.5 km on paved roads. Tour in French. 25 places. Registration mandatory until 12 November at https://tcsge-shop.ch/product/plan-les-ouates/