Nestled in the Ozark Mountains just 6 miles from downtown Eureka Springs, AR., you will find Onyx Cave Park. Onyx Cave is Arkansas’ oldest toured cave and has been famous since 1891. The cave is a delight for all ages and is one of the very few self-guided cave tours in the US. You can go deep into the underground and explore the amazing cave formations all at your own pace. The tour comes complete with an audio guide that walks you through the cave explaining the fascinating history and pointing out special features along the path. There is seating at the back of the cave should you want to sit, relax, and take in the ambiance of the cave.