The Creux Percé abyss is an intriguing chasm in the ground. It is believed to have served as a cooler. In 1910, a temperature reading indicated 22°C on the surface while it was -1°C at the bottom of the abyss.
A huge cave system with an underground river. The cave has
several entrances and a total length of more than 28 km.
Was discovered in a small quarry in 1969. …