Kinosaki Onsen

The limited express train from Kyoto takes about two and a half hours to reach Kinosaki Onsen Station, following the Sea of Japan coast through Hyogo Prefecture as the landscape turns from industrial suburbs to rice paddies to dark, pine-covered hills. When you step off the platform and onto the main street, you will probably stop walking for a moment. The street runs alongside a narrow willow-lined canal, and at this hour of the evening it is full of people in yukata, shuffling along in wooden geta sandals, steam rising from the grates in the stone pavement below their feet.

The town is built around the idea that the entire village is one big ryokan. The station is the front entrance, the streets are the corridors, your inn is the guest room, and the seven public bathhouses scattered across a walkable ten-minute loop are the communal grand baths. Each bathhouse has a different architectural character. Goshonoyu is covered in a stepped gabled roof that looks like something from a Heian-era illustration. Mandayu sits beside a waterfall. Satononyu, the largest, has a cavernous interior rotenburo. When you check into almost any inn in town you receive a wooden stamp card and can visit as many as you like over the course of your stay.

The water type at Kinosaki is sodium chloride with a near-neutral pH of about 7.1, which sounds unremarkable until you get into it. The salt concentration in the baths is high enough to give the water real body. It feels warmer than it reads on the thermometer, and the heat penetrates quickly. Coming in from the cold canal-side air in January and sinking into Mandayu's outdoor rock pool, you can feel your legs go from numb to burning in about thirty seconds. The water emerges at up to 78 degrees from the source, which means dilution is necessary, but the individual bathhouses maintain different temperatures across their different pools.

What you will not find in any brochure is the moment when the evening crowds thin out, around nine o'clock, and you walk back along the canal in your damp yukata with geta on cold stone and just the sound of water in the weir and a few lanterns reflecting in the dark canal surface. The monk Dochi is credited with discovering the springs in the eighth century. Kinosaki has been refining this walking-and-soaking ritual ever since, and however many people do it each year, it does not feel worn out.