Grottes de Thaïs

Useful Information

Location: Saint-Nazaire-en-Royans
Open: Easter Weekend to APR Tue-Sat 14-18, Sun, Hol 10:30-12:30, 14-18.
MAY to JUN Tue-Sat 14-18, Sun, Hol 10:30-19.
JUL to AUG daily 10:30-19.
SEP Tue-Sat 14-18, Sun, Hol 10:30-19.
OCT Tue-Sat 14-18, Sun, Hol 10:30-18.
Last tour 45 min before closure.
Groups all year except Christmas holidays after appointment.
Fee: Adults EUR 6.50, Children (3-13) EUR 4.50, Children (0-2) free, Family (2+2) EUR 20.
Classification: SpeleologyKarst cave
Light: LightIncandescent Electric Light System
Guided tours:
Address: Grotte Préhistorique de Thaïs, 26190 St Nazaire-en-Royans, Tel: +33-475-484576. E-mail: contact
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.


1878 cave exploration leaves graffitti.
1957 dive through first sink.
2005 .


The Grotte Préhistorique de Thaïs (Prehistoric Cave of Thais) is primarly famous for being an archaeological excavation site.