Grottes de Baume

The 30-million-year-old Grottes de Baume are secreted away in the cliffs 2km south of Baume-les-Messieurs. On guided tours, visitors can weave their way along 450m of passageways, with stalactites dangling above and limestone crags looming from the shadows. Allow an hour for the tour, bring a sweater, and listen out for the flutter of resident bats.

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