" What is our last frontier? Mankind has conquered the North Pole, the South Pole, Mt. Everest, and even the bottom of the sea. But who would have thought of climbing down into the earth through the deepest caverns. It's like climbing the tallest mountain, except in reverse. In the dark. Sometimes under water. Crazy scary. If you fall and get hurt, it is incredibly hard to get you out, so even a broken leg can prove fatal. If you die, your body must stay until you are bones because it takes too many resources to take your body out. Who would be brave enough, or nutty enough to do this? Many do, and some die. A great read, but I'd never, never do it. "
— Joanne, 1/7/2014