There are a number of caverns and caves to explore in the areas around Jamestown and Sonora.
California Cavern State Historic Landmark
Since 1850 tourists have been making their way deep down into these extensive and beautiful caves. Some of the earliest tourists included Bret Harte, Mark Twain and John Muir. These caves were the first to be operated as a tourist attraction, and thousands of people every year are still amazed by the natural beauty these caves have on display.