GROTTE DE LA VERNA
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Europe's largest underground chamber for an exceptional visit that will delight beginners and adventurers alike!
It's the largest underground chamber in Europe, ranked among the top 10 in the world, and the first to be equipped for the general public. Its unusual dimensions: 250 m in diameter and 190 m high, it covers an area of 5 ha and has a volume of 3.6 millionm3. For the record, Polytechnique students took to the air in a hot-air balloon! In this cave, 3 different types of terrain meet: schist and limestone from the primary era (350 million years ago) and limestone from the secondary era (80 million years ago). In the midst of this mineral universe, a remarkable fauna has settled in: small invertebrates, all blind and depigmented, theAphaenops loubensi and theAphaenops cabidochei, which need an atmosphere saturated with humidity to live. "Discoverers, explorers or adventurers... to each his own! You start at the Visitor Center, with a choice of 2 access routes: on foot along a signposted 8 km round-trip path to the GR10 and the Arpidia ravine (2h round-trip - 1h30 return), or by shuttle bus for 30 minutes. Depending on your desires and physical abilities, we offer a 1-hour discovery tour for beginners, a 1.5-hour river tour with access to the waterfall spillway in the hall, and a 2-hour sport tour with a caving guide. More of an adventurer? La Verna Aventures Spéléo": a 4-hour to full-day caving tour with an introduction to caving. Temperature 6°C, even in summer, so bring warm clothes, pants and walking shoes. An exceptional site not to be missed.
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Une belle expérience.
Impressionnant.