



Laboratoire Souterrain à Bas Bruit
Rustrel
Explore four kilometers of underground tunnels carved through a mountain, where a Cold War military bunker now houses active seismology and hydrological research.
Former military site
Underground research tunnels
Seismic measurement labs
Cold War history
Tips
🚂little train takes you deep into the galleries
🔬see seismic sensors and clean room facilities
📞book ahead - only open Heritage Days mid-September
Laboratoire Souterrain à Bas Bruit
RustrelOpen




Explore four kilometers of underground tunnels carved through a mountain, where a Cold War military bunker now houses active seismology and hydrological research.
Former military site
Underground research tunnels
Seismic measurement labs
Cold War history
Tips
🚂little train takes you deep into the galleries
🔬see seismic sensors and clean room facilities
📞book ahead - only open Heritage Days mid-September