Mammoth Cave National Park, Kentucky, USA, encompasses part of Mammoth- Flintridge Cave System the longest cave system in the world. It is over twice as long as the second largest cave system, Mexico's Sac Actun underwater cave.
Mammoth Cave Kentucky: 5 Things To Do With Your Kids
Naturally formed Sand Cave in Cumberland Gap offers an unusual, yet amazing view of where ancient Kentuckians might have lived. Cumberland Gap is also home to the 2400 foot pinnacle where one can view Kentucky, Tennessee and Virginia simultaneously.
Things to do Mammoth Cave National Park in Kentucky USA. This bucket list destination with pictures has hiking, camping, canoeing on the Green and Nolin Rivers and many other adventures for the whole family.