You will descend to the deepest portion of the cavern open to the public, 830 feet beneath the desert surface. Although not as difficult as the Natural Entrance route, this 1-mile tour does require descending, and later climbing, an 8-story hill.
Added by Upcoming Robot on September 2, 2010

mayala555
I am a fan of JRR Tolkien's work so of course my fiance and I saw this musical. It was extemely hilarious and I highly recommend it even if you haven't read the books like my fiance, needless to say he enjoyed himself.