Grand Avenue Tour at Mammoth Cave National Park, Kentucky: Inside the Longest Cave In The World

Henri walking the Grand Avenue tour, Mammoth Cave

Last week, Henri and I took the Grand Avenue Tour at Mammoth Cave National Park, KY. Mammoth Cave National Park hosts the longest cave system in the world by far, with 400 miles of trails and passages. With such a huge underworld to discover, it is not a surprise if dozens of tours are offered, from very short & easy to very long & strenuous. Here is a review with pictures of the Grand Avenue Tour. Continue reading “Grand Avenue Tour at Mammoth Cave National Park, Kentucky: Inside the Longest Cave In The World”