Detailed information in: https://usan.ffspeleo.fr/spip2129/IMG/pdf/2020_Affiche_JPS.p The visit is quite sporting (good physical condition required) and rather aquatic. Two options to choose from:

• Simple visit: lasting from 1h30 to 2h, it consists in the descent of the well of Clairlieu (38 m) equipped every 3 m of landings connected with each other by fixed ladders, followed by a round trip in the gallery. The presence of water and the spacing of the ladder bars limit the age of the visitors. From 10 years.
• crossing: of a duration of about 3 h, it consists in the descent of the well of the Virgin (63 m) using caving techniques followed by the course of the artificial underground river for about 2,7 km to go up by the well of Clairlieu (38 m) using fixed scales. From the age of 12.

Virtual Discovery

• Simple video tour of Nature Fest 2019:
• The crossing in video:
• Discover the Speledrome on Wikipedia: https://en.wikipedia.org/wiki/Sp%C3%A9l%C3%A9odrome_de_Nancy