Shionoha Onsen Yamabato-yu: Hot Spring Guide & Prices

Shionoha Onsen is a hidden spring welling up in a deep valley of Okuyoshino, further upstream than the Osako dam in Kawakami village, Nara. It is an ancient spring said to have been opened more than a thousand years ago, and Yamabato-yu is its single inn. The thick brown water, rich in iron and carbon dioxide, has a character so striking it is unforgettable once seen.

Highlights

The greatest feature is the unusual tub coated in a thick layer of mineral deposits. Over long years the spring's minerals have hardened, and the rim of the bath has grown almost like rock. Because the source water flows through untouched, it is clear and colorless when it emerges but turns a pale yellow-brown on contact with air, and a strong iron scent accompanies a warmth that reaches the core of the body. From the open-air bath you look out on the Osako dam lake and the mountains, a grand view only a hidden spring can offer. The local dishes served in the dining area are also well regarded.

Enjoying the Seasons

Amid the fresh green of spring and the deep green of summer, the rich water and the gorge view come into harmony. In autumn the surrounding foliage reflects on the lake, the most splendid scenery of the year. In winter the snow-viewing open-air bath is exceptional, and the warming, full-bodied water feels truly precious.

Access and Basic Information

The spring is in Shionoha, Kawakami village, Yoshino district, Nara. Public transport is difficult, so coming by car is the basic option. From the Osako dam wall you drive about ten minutes upstream along a mountain road. Day bathing is 900 yen for adults and 500 yen for elementary school children and younger, with reception generally from 10 a.m. into the late afternoon. Closing days are often Wednesday from April to October, and Tuesday and Wednesday from November to March, so it is reassuring to check before you go. The water is a sodium bicarbonate and chloride spring, rich in iron and calcium, and is nicknamed a beauty bath.

Practical Travel Notes

The mountain road goes on for a while, and the surface can freeze in winter, so allow time when driving and try to arrive early. The rich water warms you deeply but can make you light-headed, so rest often as you bathe. As a popular hidden spring with limited parking, arriving early is wise on autumn foliage weekends and other busy times. Pairing it with the scenery of Yoshinoyama or around the Osako dam in the same Yoshino area makes for a proper mountain day out. As a budget guide, figure on around 1,500 to 2,000 yen per person for a bath and a meal.

A Quick Tip

The mountain road goes on for a while, so allow time when driving and try to arrive early. The rich water warms you deeply but can also make you light-headed, so do not overdo it. The iron can stain towels, so it is best to use one you do not mind getting marked.

Sightseeing Checklist

• Estimated time: About one to two hours for a bath
• What to bring: A towel (available to buy), a change of clothes, and your own soap to be safe
• Best season: Spring and autumn, when Oku-Yoshino is beautiful with fresh greenery and autumn leaves
• Avoiding the crowds: It is a remote single inn and the roads are narrow, so allow extra time
• Nearby stops: Osako Dam, Odaigahara, Mitarai Gorge and Mount Yoshino

📚 Sources

This article is compiled from tourism information for Nara Prefecture and information published by the individual facilities. Fees, opening hours and closing days may change, so please check each facility's official information before setting out.