5 minutes from Shimodokari Station on the JR Gotemba Line. About 10,000 years ago, when the Shin-Fuji volcano began to erupt, the Mishima lava flowed down the valley between Mt. Ashitaka and Mt. Hakone. Ayutsubo Falls flow over a basalt cliff, and the lava flow is not visible downstream of the falls. This is where the flow of lava stopped. The upper reaches of the waterfall are wide open to the left and right, and here you can enjoy a magnificent view of Mt. Fuji above the waterfall. In addition, at the end of the lava flow, the Warikozuka Inari Shrine and the Chorei Shrine are located on the top of large lava mounds. When you visit the lava mound that was used as a quarry, you will be able to imagine how big it was.
| ｜Area | Northern Izu Area (Nagaizumi Town) |
| ｜Geological Age | The earth created by the Mishima lava flow that erupted from the Shin-Fuji volcano about 10,000 years ago |
| ｜Route | Nagaizumi Visitor Center→ Ayutsubo Falls→ Honjuku Waterway/Quarry→ Cultural Center→ Warikozuka Inari Shrine→ Chorei Shrine→ Ruins of Yoneyama Villa→ Shimotogari Station |
| ｜Distance | Approx. 2.3km (Cumulative elevation 30m) |
| ｜Duration | Approx. 120 minutes |
| ｜Difficulty | Walking |
| ｜Meeting Place | Nagaizumi Visitor Center, Community Nagaizumi 2F <MAP> |
| ｜Ending Place | Shimotogari Station <MAP> |
| ｜Participation Fee | Adults (junior high school students and older): 3,000 yen Elementary school children: 1,500 yen |
| ｜Number of Participants | 2 to about 10 people |
| ｜Reservation | Please make a reservation at least one week in advance. |
| ｜What to Wear/Bring | Comfortable clothing, footwear (no sandals), hats, drinks, etc. |
| ｜Notes | The tour will be operated in case of light rain, but in case of stormy weather it will be cancelled. Please read about the cancellation policy. |
| ｜How to Apply | Please apply from the "Reservation Form" at the bottom of the page. |
Nagaizumi Visitor Center
Information on the Nagaizumi Geo-sites is available here.
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Ayutsubo Falls
At the Ayutsubo Falls over the Kisegawa River, you can see a bedrock about 10 meters thick with several layers of lava piled up. This is a lava flow that flowed from Mt. Fuji about 10,000 years ago. The soft loam layer underneath the lava was washed away by the flow of the Kisegawa River, and the hard lava that was left behind created a waterfall.
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Stone Quarry Ruins
It is the remains of the Mt. Fuji lava flow. You can see quarry ruins behind the Nagaizumi Cultural Center “Belforet.”
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Warikozuka Inari Shrine
On the small hill where the Inari Shrine stands, there are many red torii gates along the cracks in the rock. This rock is lava that flowed from Mt. Fuji about 10,000 years ago, and the shrine is built on a "lava mound" formed by this lava.
