California Cavern State Historic Landmark
Mountain Ranch
California's longest cavern system winds through tight passages and grand chambers filled with stalactites. Take the standard tour or book a muddy spelunking expedition that'll leave you caked in clay.
Underground cave exploration
Stalactite and stalagmite formations
Family-friendly guided tours
Adventurous spelunking expeditions
Tips
🥾wear shoes you don't mind trashing
🧗"muddy maze claimed the soles of our shoes"
💧closed 4 months yearly when caverns flood
California Cavern State Historic Landmark
Mountain Ranch
California's longest cavern system winds through tight passages and grand chambers filled with stalactites. Take the standard tour or book a muddy spelunking expedition that'll leave you caked in clay.
Underground cave exploration
Stalactite and stalagmite formations
Family-friendly guided tours
Adventurous spelunking expeditions
Tips
🥾wear shoes you don't mind trashing
🧗"muddy maze claimed the soles of our shoes"
💧closed 4 months yearly when caverns flood