This is the cave author Mark Twain described in five of his books. The cave was first shown in 1886. It is a registered National Natural Landmark.

This is one of a few labyrinth style caves in the world, where the passages form crisscross patterns. The tour lasts one hour and is 52 degrees Fahrenheit year-round.There are no stairs – good walking shoes are recommended. 

Located on Route 79, two miles south of historic downtown Hannibal.

Tickets: Adults, $19.95; ages 6-12, $10.95; ages 2-5, $5. Group rates offered.

Candlelight Legacy Tour offered for the 200th Anniversary of the discovery 1819-1820. Cost is $18.19. Call for times and dates at 573-221-1656.

Cameron Cave (tours by lantern light) Cave Hollow West Winery and Mark Twain Cave Campground are on-site.