Trou du Diable, Underground cave system in Saint-Casimir de Portneuf, Quebec, Canada.
The cave extends for 980 meters beneath the surface, featuring an underground stream that flows as a tributary to the Sainte-Anne River.
During the early exploration of New France, local inhabitants named this geological formation due to legends of supernatural entities residing within its depths.
The cave network serves as an educational center where visitors learn about geological processes and underground water systems through guided expeditions.
Tours operate from May to September with two options: a 90-minute tourist route and a 3-hour adventure route requiring advance reservations.
The cave contains multiple galleries with ceiling heights reaching 6.8 meters and displays notable examples of vortex erosion formations.
Location: Quebec
GPS coordinates: 46.67932,-72.09181
Latest update: March 5, 2025 18:49
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