Guide
Mt. Kasayama is a small volcano standing at 112m, located on the northeastern coast of Hagi City, Yamaguchi Prefecture. Its name is derived from its shape, which resembles a 'Ichime-gasa' (a traditional Japanese woman's hat). Situated in the center of the Kitachimon Coast Quasi-National Park, it is a scoria cone featuring a crater approximately 30m in diameter and 30m in depth. This site is a collection of natural sculptural beauties, including Myojin Pond, created by volcanic topography, and the camellia forest that changes its expression with every season.
The formation of Mt. Kasayama consists of a lava plateau from an eruption approximately 11,400 years ago, followed by the formation of a scoria cone. Historically, the site gained academic and touristic attention when the Crown Prince (the future Emperor Showa) visited in 1926. Furthermore, in 1927, the mining and metallurgy scholar Toyonoshin Tono, who owned the land at the time, developed the mountain trails. His son, Shoichi Tono, later donated the area to Hagi City. A monument commemorating the Tono father and son is located near the summit to preserve this history.
Mt. Kasayama is dotted with precious spots created by unique volcanic phenomena and natural forces.
The best time to visit Mt. Kasayama is during the 'Hagi Camellia Festival' from mid-February to late March. During this period, you can witness the stunning sight of vibrant camellias in full bloom and the 'Ochitsubaki' phenomenon, where fallen blossoms carpet the ground in red. The views from the summit are most spectacular on clear, sunny days when the islands of the Sea of Japan are clearly visible.
You can enjoy trekking along the 'Mt. Kasayama Nature Research Path.' The route from Myojin Pond through the camellia forest to the summit allows you to observe geological changes and plant diversity. At the summit observatory, you can relax at the cafe while enjoying the scenery. This area serves as an excellent educational site for understanding Geoparks.
The area around Mt. Kasayama is rich in nature and culture. Near Myojin Pond and other historical sites in Hagi, you can encounter local ingredients and traditional crafts. The scenic coastline is also perfect for driving and strolling.
As this is a natural environment, please note the following: