This DVD takes you deep inside Cumberland Caverns where few people have been. In fact, we were able to film some formations for the very first time. Besides the adventure, we also interview three of our scientists about cave formation, cave men, and blind cave fish. Our guide Robby Black shares his expertise and guides us safely through the cave. The DVD also includes behind-the-scenes footage, a free movie poster, original background music, and a song that is currently on the national inspirational country music chart. We also included a fun animated song about a skunk in the cave. Extreme Caving is a God-honoring delight for the whole family. - Publisher.