Akiyoshidai (秋吉台) is a vast karst plateau located in the western part of Yamaguchi Prefecture, Japan. It is the largest karst plateau in Japan, covering an area of approximately 130 square kilometers (50 square miles) and boasting an average elevation of 352 meters (1,155 feet) above sea level. The plateau was formed over millions of years through the erosion of limestone by rainwater, creating a unique landscape characterized by sinkholes, underground rivers, caves, and limestone pillars.
Designated as a Quasi-National Park and a Special Natural Monument, Akiyoshidai is celebrated for its stunning natural beauty and distinctive ecosystem. The plateau is home to a rich variety of plant and animal species, including rare and endemic species like the Japanese serow, a type of goat-antelope, and the Akiyoshi Cave dwelling cricket, found exclusively in the Akiyoshidai caves.
One of the most popular attractions in Akiyoshidai is the Akiyoshido Cave (秋芳洞), one of the largest limestone caves in Japan and East Asia. The cave stretches for approximately 10 kilometers (6.2 miles) and features a breathtaking array of stalactites, stalagmites, flowstones, and underground rivers. Visitors can take guided tours through a portion of the cave, marveling at its awe-inspiring beauty.
The surface of the plateau is also a popular destination for outdoor enthusiasts. Akiyoshidai offers numerous hiking trails that wind through the unique karst landscape, providing stunning views of the surrounding countryside. Visitors can also enjoy various outdoor activities such as camping, cycling, and nature observation.
Akiyoshidai’s karst landscape is a testament to the power of nature and the passage of time. Its unique geological formations, diverse ecosystem, and opportunities for outdoor recreation make it a must-visit destination for anyone interested in exploring the natural wonders of Japan.
Getting there
By Train and Bus
- Take the Shinkansen to Shin-Yamaguchi Station
- From Shin-Yamaguchi Station, take a bus bound for Akiyoshido
- Travel time: About 45 minutes
By Car
- From Shin-Yamaguchi Station: About 30 minutes
- From Yamaguchi Ube Airport: About 45 minutes
- From Tsunoshima Ohashi: About 1 hour 15 minutes
- From Hagi: About 45 minutes
- From Shimonoseki: About 1 hour
