Come and discover the Perrieres hidden district
Les Perrières are former quarries dating from the 18th and 19th century, carved out of falun, a sandy-shell stone deposited by the sea about10 million years ago.
Thanks to a specific extraction method, farmers would cultivate their fields above ground whilst underground there were ogival vaults, some of which rose up to 20 meters.
The last active quarries closed in the 1940s.
Covering 4 and a half hectares, about 500 underground galleries line the Perrieres street. Some were reused as housing or mushroom growing. Nowadays, the whole district is listed as an exceptional environmental site
Although the Perrieres street is still used for housing (don’t miss its numerous colourful roses lining the street and the troglodytes still lived in)
Most cave dwellings were deserted in the 1970s and mushroom growers left the place in 1981. The local council bought some of the dwellings, rehabilitated them and inaugurated a heritage centre in 1989 under the aegis of the DRAC des Pays de Loire of the Rectorat de Nantes. The innovative concept consisting in having a real-life experience of this unique heritage by completed immersed in it (sleep, eat, work and have fun there) was a true challenge