Traverse the same labyrinth that inspired The Adventures of Tom Sawyer and see Mark Twain’s newly discovered signature in an easy, hour-long, guided tour of Missouri’s oldest show cave. This Cave is one of a few labyrinth style caves in the world and was first shown in the 1880s after being made famous by Samuel Clemens, or Mark Twain. It is a registered National Natural Landmark. The tour route is lit and walkways are level and smooth. The cave is open year round and is a constant 52 degrees which makes it a great adventure for any day, rain or shine.
The Mark Twain Cave Complex is Located on Route 79, two miles south of historic downtown Hannibal. The Cameron Cave, Hannibal Tour Company Truck Tour, Cave Hollow Winery, and Mark Twain Cave Campground are also located on site.