subterranean waterfall

  • Hidden Gems Beneath the Surface in Eastern Tennessee

    Hidden Gems Beneath the Surface in Eastern Tennessee

    Hitting the wide-open road without any expectations, we’ve uncovered hidden gems. In Eastern Tennessee, we found the largest underground lake, the tallest underground waterfall, and a cavern off the beaten path with a subterranean waterfall that could take the claim of the tallest. We headed to Eastern Tennessee to visit the Cumberland Gap and the…