A ryokan veranda opening onto a green garden

Why we exist

It begins with

Our work rests on a single Japanese idea: (hot water), (cure) the practice of healing in a hot spring, recorded here for a thousand years. We are here to document it honestly: the towns, the chemistry of their water, the customs of the bath. We read the primary record, in Japanese, and omit what we cannot prove. That is the whole of our agenda.

Why we exist

It begins with

Our work rests on a single Japanese idea: (hot water), (cure) the practice of healing in a hot spring, recorded here for a thousand years. We are here to document it honestly: the towns, the chemistry of their water, the customs of the bath. We read the primary record, in Japanese, and omit what we cannot prove. That is the whole of our agenda.

What partnership brings

What we bring

Our readers arrive looking for one valley in particular, having already read why it matters. Here is what a partnership provides.

Honest editorial coverage

Decided by the standard, never by payment. Credible precisely because it cannot be bought.

A verified record

A verified English record of your town, sourced back to your own pages and credited.

Designed to be discovered

A durable, correct representation of your town in the sources answer-engines now read.

The reader who stays

Someone who has read about the water before arriving, books an inn rather than a day trip, and treats the bath as the reason for the journey.

The Japan Onsen Society seal

These destinations are a deeper Japan, beyond the metropolitan circuit and among the countrys most profound cultural achievements. Where most coverage renders them as photo stops between the famous cities, we are the considered alternative.

These destinations are a deeper Japan, beyond the metropolitan circuit and among the countrys most profound cultural achievements. Where most coverage renders them as photo stops between the famous cities, we are the considered alternative.

These destinations are a deeper Japan, beyond the metropolitan circuit and among the countrys most profound cultural achievements. Where most coverage renders them as photo stops between the famous cities, we are the considered alternative.

A sea of cloud filling the valleys at dawn
A sea of cloud filling the valleys at dawn

Who we partner with

The institutions that keep these places

We work with the bodies and businesses that steward the water and the towns.

Who we partner with

The institutions that keep these places

We work with the bodies and businesses that steward the water and the towns.

DMOs and governments

Prefectural and municipal boards steering visitors into the regions.

DMOs and governments

Prefectural and municipal boards steering visitors into the regions.

DMOs and governments

Prefectural and municipal boards steering visitors into the regions.

Onsen associations and ryokan guilds

温泉協会 and 旅館組合 the bodies that hold a town's standards.

Onsen associations and ryokan guilds

温泉協会 and 旅館組合 the bodies that hold a town's standards.

Onsen associations and ryokan guilds

温泉協会 and 旅館組合 the bodies that hold a town's standards.

Ryokan and property owners

The families and businesses that own and run the inns.

Ryokan and property owners

The families and businesses that own and run the inns.

Ryokan and property owners

The families and businesses that own and run the inns.

Local operators and transport

The people who move and host the traveler once they arrive.

Local operators and transport

The people who move and host the traveler once they arrive.

Local operators and transport

The people who move and host the traveler once they arrive.

Partner questions

Common questions

What partnership means, and what it does not.

Partner questions

Common questions

What partnership means, and what it does not.

What do you ask of us?

How does a town earn a place in the Registry?

How do you actually bring visitors to our region?

Will our town be represented accurately and discoverable online, including in AI search?

We already have an English website — why you?

Have you earned this kind of access before?

Work with the Society

Begin a conversation

Everything we publish is checked against a primary source, in Japanese, and dated. We print what we can prove and leave out what we cannot.

An ukiyo-e woodblock print of women at a bathhouse
An ukiyo-e woodblock print of women at a bathhouse