Underground Mills in Le Locle
Moulins souterrains
Fee required
Parking available
Water mills built into a cave in the 17th century are powered by a subterranean river.

šŸ“œ Unique industrial heritage site, hydraulic mills buried 23m underground.
šŸ” Built into natural karst caves in the 17th century, powered by the Bied River.

Why Go

🌊 Descend to see three levels of mill, including a giant waterwheel.
šŸ›ļø Attached museum with local history exhibitions.
šŸ—£ļø Audio guide available in German, French, Italian, and English.

Why Avoid

āš ļø Grotto temperature 7°C, wear warm clothing.
🪜 Lots of stairs, may not be suitable for all.

Tips

šŸ…æļø Large car park nearby.
🚌 Accessible by public transport (bus stop Moulins souterrains).

Cost

šŸ’° Adults CHF 14, seniors/students CHF 11.50, children (6-16) CHF 7, families CHF 30.

Hours

šŸ•’ Daily 10:00-17:00 (May-Oct). Tue-Sun 14:00-17:00 (Nov-Apr). Closed Jan 26-28, 2026 for works.

Last updated 1 day ago

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