Wayfinder Atlas

Oyashirazu Cliffs

In Japanese: 親不知(天険親不知)
Open by month

Partly closed in January: Western walking path closed Dec-Mar.

Partly closed in February: Western walking path closed Dec-Mar.

Partly closed in March: Western walking path closed Dec-Mar.

Open in April. No seasonal closure recorded.

Open in May. No seasonal closure recorded.

Open in June. No seasonal closure recorded.

Open in July. No seasonal closure recorded.

Open in August. No seasonal closure recorded.

Open in September. No seasonal closure recorded.

Open in October. No seasonal closure recorded.

Open in November. No seasonal closure recorded.

Partly closed in December: Western walking path closed Dec-Mar.

Checked against the official site on 2026-10-12.

Oyashirazu Cliffs
Photo: 小石川人晃 / CC BY-SA 4.0, resized

About 10 km of cliffs where the Northern Alps drop into the Sea of Japan, once the most feared stretch of the old Hokuriku road; walk the old road and a 1912 brick rail tunnel.

Place of Scenic Beauty; Itoigawa UNESCO Global Geopark

Nearby

Travel times are rough estimates by car.

Plan by month in the app →

Closed or limited
Western walking path closed Dec-Mar
Getting there
Mainly by car; Michi-no-eki Oyashirazu Pier Park is 2 min from Oyashirazu IC (Hokuriku Expressway)
Easier with a tour or car
Fee
Free
Good to know
Route 8 here closes in heavy rain; the western walking path is closed Dec-Mar
Time needed
1 h

Checked against the official Japanese website on 2026-10-12. Report outdated info