A 2-minute highlight of the America’s Greatest Caverns DVD. Available on location at these caves and from www.finleyholiday.com. Descend into a mysterious underground world and explore Americas incredible network of caves and caverns. From every region of the US, discover the natural treasures and adventures that lie underground. Biggest, Best, Unusual, Beautiful! Not only will you visit Americas biggest and best, but youll discover many lesser-known but equally fascinating caves. Cave experts explain how various cave features were formed and the important role that water plays in the creation and long-term health of cave ecosystems. Marvel at the unique wildlife that have adapted to life in the dark, ranging from eyeless fish to creepy cave crickets. Learn of todays explorers, scientists and spelunkers and their discoveries in the underground world. Part of Finley-Holiday Films National Parks Series DVDs.