Grottes des Moidons, Natural cave and viewpoint in Molain, France
The Grottes des Moidons is a cave system in the Jura region featuring multiple limestone chambers. The rooms display stalactites, stalagmites, and mineral deposits that formed over thousands of years.
The cave was discovered in 1966 and opened to visitors in 1989. It provides insight into geological processes dating back millions of years.
The cave network features regular sound and light presentations that illuminate the mineral formations while explaining their geological development through educational narration.
Access is available from April through September, with guided tours lasting about 50 minutes. Visitors should wear comfortable shoes as the paths are uneven and it is cool inside the cave.
Inside there is an area dedicated to the bats that live there. Visitors learn how these animals use the cave and its ecosystem.
Location: Molain
Address: Grotte des Moidons, 39800 Molain, France
Opening Hours: April 14:00-17:15; April Wednesday off; May 11:00-17:15; May Wednesday off; June 11:00-17:15, Wednesday[1-2] off; July-August 10:30-17:30; September 01-14 11:00-17:15; September 15-30 14:00-17:15; Wednesday[3-4] off
Phone: +33384517494
Website: https://grottesdesmoidons.com
GPS coordinates: 46.83844,5.80664
Latest update: December 6, 2025 17:47
The Jura department features varied landscapes with mountain ranges, limestone plateaus, and forested valleys. The terrain has shaped notable geological sites: the Hérisson waterfalls stretch over nearly 4 kilometers with 31 waterfalls, the Baume-les-Messieurs Reculée forms a closed valley with...
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