A valley that was created by the collapse of a limestone cave hundreds of thousands of years ago. Excavations are ongoing due to the possibility that it may have been the home of "Minatogawa Men", a human race that lived there 20,000 years ago. So far the world's oldest fish hook, dating back 23,000 years, has been discovered. At the entrance to the Valley of Gangala is the Cave Cafe, set in a natural limestone cave, which groups can reserve for parties or live performances.