Hiraodai Karst is a unique geological formation located in Yamaguchi Prefecture, Japan. It features stunning limestone landscapes, characterized by sharp peaks, deep valleys, and numerous caves. The area is known for its rich biodiversity and is home to various plant and animal species. The karst landscape was formed over millions of years through the erosion of limestone by water. Visitors can explore the scenic beauty through walking trails and enjoy activities like caving. Hiraodai Karst is also recognized as a national park, making it a popular destination for nature lovers and outdoor enthusiasts.