An adventure tour on one of the largest unexplored areas in the Izu Peninsula.! Iruma Senjojiki is a vast sea table where you will see traces of Izu stone quarrying, beautiful geological formations of the cliffs and mysterious dikes. They are truly powerful and overwhelming.
| ｜Area | Southern Izu Area (Minami-Izu Town) |
| ｜Geological Period | Ejecta of submarine volcanoes that erupted on a shallow seabed 10 million ~ 2 million years ago |
| ｜Itinerary | Iruma Parking Lot→ Minami-Izu Trail→ Iruma Senjojiki→ Minami-Izu Trail→ Iruma Parking Lot |
| ｜Distance | Approx. 4.5km (cumulative elevation 380m) |
| ｜Duration | Approx. 180 minutes |
| ｜Level | Trekking (with healthy legs, stairs, slopes, and steep paths) |
| ｜Meeting Point | Iruma parking lot (in front of the bus stop) <MAP> |
| ｜Ending Point | Iruma parking lot (same as meeting point) |
| ｜Participation Fee | Adults: 5,000 yen Elementary school children (5th grade and above): 2,500 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 cancelled not only in case of stormy weather, but in case of light rain, it will not be operated. In summer, the tour is not in operation. Please read about the cancellation policy. |
| ｜How to Apply | Please apply from the "Reservation Form" at the bottom of the page. |
Iruma parking lot (in front of the bus stop)
Free parking.
This is the meeting point of Iruma Senjojiki Tour.
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Iruma Coast
The coast surrounded by nature is truly an unexplored area of Izu. Loggerhead turtles sometimes come to lay eggs on the shores of small coves!
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Promenade to Senjojiki (1)
After climbing the mountain road, you will come out onto the forest road. You will walk while enjoying the scenery and learning about mountain plants along the way.
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Promenade to Senjojiki (2)
Continue to walk along the promenade and forest road, and finally you will have a glimpse of the destination. If you look around at the rock jutting out overhead, you will see majestic scenery!
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Senjojiki
A 60-minute walk from Iruma Port, Senjojiki is a vast terrace-like plateau where volcanic ash and pumice layers that have fallen on the seabed have risen and flattened out. There are also beautiful geological formations on the cliffs and huge rock formations. Traces of Izu stone quarries can be seen everywhere.
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Mitsuishi Cape
The white cliff that is an extension of Senjojiki is Cape Mitsuishi. Traces of rising magma which were cooled and solidified later in the white volcanic ash strata (dikes) create a powerful landscape.
