• Authors: Jon Kramer and Julia Martinez
  
• Paperback: 184 pages
• 6" x 9"
• Informative and entertaining guide to California's caves, mines, and lava tubes. 
• Complete site details including temperature, information on guided/self-guided tours, and driving directions. 
• Fascinating detail about each site's history and geology
• Full-color photographs of the underground wonders 

Learn about the author's candid tips that help you see the site through experienced eyes and learn more about California's best caves, mines and lava tubes.