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About the Grotto

Cave Conservation

Mapping & Research

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Executive Committee



The Explorer



Western Region

The Southern California Grotto is a chapter of the National Speleological Society, and was chartered in 1949. We're one of the oldest grottos in the NSS, and have a long and distinguished history of cave exploration, cave science, and cave conservation throughout California, and in other areas of the US and the world.

A typical southern California cave. (Photo: John Woods)

The Southern California Grotto meets the first Tuesday of each month at 7:30 p.m. at the Beckman Institute Auditorium at the California Institute of Technology (Caltech) in Pasadena.

Meetings are a great opportunity to meet other Grotto members, learn about caves and caving, and get involved with grotto caving activities. Each meeting features a slide show on recent trips and activities by Grotto members, or other presentations about caves or caving.

Visitors and new cavers are always welcome to attend. Please stop by.