Oni-iwa Valley

Oni-iwa Valley walking tour from Nagoya

Easy nature walking day tour in Oni-iwa Valley

Oni-iwa valley is about one-hour drive from the central Nagoya. You can have a 2-hour walk in the mountain, especially along the stream. It’s an ideal afternoon walking experience. If you are tired of busy urban settings in Nagoya, take a half day tour to breathe fresh air in forests.

Oni-iwa is not in a deep mountain though it shows an unique natural feature. The bottom of a small valley is filled up with large rocks. It was believed that an oni (devil) lived in this hidden valley. Thus the name Oni-iwa means ‘devil rocks’.


At the entrance of the valley, there are two waterfalls. These falls are called “Meoto Daki”, which means “wife and husband falls”. Water in the pond is not clear but this is due to the rain.

Oni Iwa

There are many rock walls. Unfortunately, bordering is prohibited in the park.

Oni Iwa

You sometimes go underneath the piled huge rocks. There is a special route which largely goes through a tunnel underneath the rocks. Unfortunately, this special route is open for the public only on the particular days of the year, due to the danger to fell off into the stream.

Oni Iwa

In the uppermost area of the valley, you walk in natural forest.

Oni Iwa

This beautiful fern is an example of wet vegetation.

Oni Iwa view point

At the viewpoint. A rewarding panorama view.

Information about Oni-iwa tour

Duration: one day from Nagoya (walking time 2-3 hours)

You pay for: a guide, transport from Nagoya (a car with driver), meals, etc. Access by public transport (bus) is very poor and not recommended.

Grade: easy walk with a bit of hill climbing

Good seasons: March-May, September-November


Post Author: Guide master