Crystal Sequoia Restoration Trip, California

Every year there is a trip to Crystal Seqouia cave to haul out rubble and perform other manual labor in order to undo the damage caused by the years of tourists coming in and out, as well as the original construction, which used a lot of concrete. The restoration's goal is to restore parts of the cave so that cave biology can thrive.

See more photos by Kristen Ankiewicz.   See more cave photos.