Mt. Kasayama

Overview & Charm

Mt. Kasayama is a small volcano with an altitude of 112m, located on the northeastern coast of Hagi City, Yamaguchi Prefecture. Its name comes from its shape, which resembles a 'Kasa' (a traditional Japanese hat worn by women). Situated at the center of the Kitachimonon Peace National Park, it is a scoria cone featuring a crater approximately 30m in diameter and 30m in depth. It is a place where the beauty of natural formations converges, such as the Myojin Pond created by volcanic activity and the camellia forest that changes its expression with the seasons.

History & Cultural Background

Mt. Kasayama consists of a lava plateau from an eruption about 11,400 years ago and a scoria cone formed by subsequent eruptions. Historically, it gained academic and tourist attention when the then Imperial Regent (the future Emperor Showa) visited in 1926. In 1927, the hiking trails were developed by the mining and metallurgy scholar Toyoshinino, the owner at the time, and later his son, Shoichi Dono, donated the area to Hagi City. A monument to the Dono father and son, who preserved this history, is located near the summit.

Main Highlights

Mt. Kasayama features several precious spots created by volcanic phenomena and nature.

• *Kasayama Camellia Forest**: At the northern end of Mt. Kasayama in Toragasaki, approximately 25,000 wild camellias grow over an area of 10 hectares. Flowering begins around December, reaching its peak from mid-February to late March.
• *Myojin Pond**: A coastal lake formed by the lava and tides of Mt. Kasayama. Because seawater enters through gaps in the rocks, the water level rises and falls with the tides. About 20 species of saltwater fish, including sea bream, live here.
• *Wind Hole (Kazaana)**: A 'natural air conditioner' utilizing the space created between the lava. Even in summer, the temperature inside remains low, and you can see the phenomenon of cold air flowing out.
• *Summit Observatory 'Tobi-no-su'**: Near the 112m summit, there is an observatory where you can view Hagi City and the islands in the Sea of Japan. The facility includes a cafe on the 2nd floor and a rest area with exhibits on the 3rd floor.

Recommended Seasons & Times

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 breathtaking sight of thousands of blooming camellias and the 'ochitsubaki' (fallen blossoms) coloring the ground red. The view from the summit is most beautiful on clear, sunny days when the islands in the Sea of Japan are clearly visible.

Activities & Experiences

You can enjoy trekking along the 'Kasayama Nature Study Path.' The route from the Myojin Pond through the camellia forest to the summit allows you to observe geological changes and plant diversity. You can also relax at the cafe at the summit while enjoying the view. The area offers great educational value as a Geo Park.

Surrounding Area

The area around Mt. Kasayama is rich in nature and culture. Near Myojin Pond and the historical areas of Hagi, you can encounter local ingredients and crafts. The coastline is also perfect for driving and strolling.

What to Bring, Clothing & Manners

As this is a natural environment, please note the following:

• *Clothing**: Wear comfortable walking shoes (sneakers or hiking shoes) and easy-to-move-in clothing for trekking.
• *Payment**: For the observatory cafe, please check in advance if they accept credit cards or IC cards, as cash is often preferred.
• *Language**: While it is a tourist spot, English support may be limited; please check on-site.
• *Reservations**: No prior reservation is required for the hiking trails.
• *Photography**: Photography of the scenery is free, but please respect the plants and the environment.
• *Accessibility**: Due to the natural terrain (rocky paths and wind holes), the area is not suitable for wheelchairs.
• *Manners**: To protect nature, please do not pick plants or leave any trash behind.