When Exploring Caves, Make A List And Check It Twice
While most people spend their holidays at home or with family, three explorers have chosen to spend their time underground. Watch these three brave cavers access the inaccessible deep under the earth's surface. In search of terrain unseen by human eyes, these three are dedicated to the push. But what they find underground will surprise even them, especially when they meet with a force for whom inaccessible has no meaning.