The Moulin Daudet at Fontvieille, about 5 kilometres south of Les Baux, is a 16th-century windmill associated with the writer Alphonse Daudet, whose collection "Lettres de mon moulin" supposedly originated here. The mill sits on a rise with good views over the Alpilles plain and the village of Fontvieille below.
The mill itself is a museum open to visitors, with exhibits on Daudet and the windmill tradition of the region. It's a gentle excursion from Les Baux, especially combined with a walk through the olive groves and the village of Fontvieille, which has a Saturday market and several good restaurants.