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Yunogo Onsen | Okayama's Famed "Heron's Spring" for Beautiful Skin

Published May 9, 2026·2min read

Located in Mimasaka, Okayama, Yunogo Onsen is a historic hot spring resort said to have been discovered 1,200 years ago by a white heron. As one of the three great Mimasaka springs, it is beloved as a "Bijin no Yu" (Spring of Beauty).

Table of Contents
  1. Overview
  2. Typical Spring Quality and Indications
  3. Water Characteristics and Best Season
  4. Access
  5. Nearby Sightseeing & Local Cuisine

Overview

The discovery of Yunogo Onsen is attributed to the high-ranking Buddhist monk Ennin during the Heian period. Legend has it that he found a white heron healing its injured leg in the water, leading him to uncover the hot spring. This story earned it the nickname "Sagi no Yu" (Heron's Spring).

During the Edo period, it was developed as a spa town by Mori Tadamasa, the lord of the Tsuyama Domain, and flourished as the personal bathhouse for generations of feudal lords. Today, it retains its historic charm with numerous ryokans and day-use spa facilities. It is celebrated as one of the "Mimasaka Santo" (Three Springs of Mimasaka), alongside Yubara and Okutsu Onsens.

Typical Spring Quality and Indications

Chloride

The main spring quality is a sodium/calcium-chloride spring, which is colorless, odorless, and gentle on the skin. The salt content coats the skin, preventing moisture from evaporating, which provides excellent moisturizing and heat-retention effects. This is why it is renowned as a "Spring of Beauty."

  • Cuts
  • Sensitivity to cold
  • Dry skin
  • Chronic eczema

Water Characteristics and Best Season

The source temperature is a pleasant 40-43°C (104-109°F), and many facilities offer free-flowing spring water directly from the source (gensen kakenagashi). The water feels soft, leaving your skin feeling moist and smooth after bathing. While enjoyable year-round, the spring season with its beautiful cherry blossoms and autumn with its vibrant foliage are particularly recommended for enjoying the onsen along with the surrounding natural scenery.

Access

Kansai Airport (KIX)Travel timeabout 3 h
RouteTake a Limousine Bus or the JR Haruka Express to Shin-Osaka Sta., then the Sanyo Shinkansen to Okayama Sta., followed by a bus.
Fukuoka Airport (FUK)Travel timeabout 3 h
RouteTake the subway to Hakata Sta., then the Sanyo Shinkansen to Okayama Sta., followed by a bus.
Tokyo StationTravel timeabout 4 h 30 min
RouteTake the Tokaido-Sanyo Shinkansen to Okayama Sta. From there, take the Uno Bus for about 1h 30m.
Shin-Osaka StationTravel timeabout 2 h 30 min
RouteTake the Sanyo Shinkansen to Okayama Sta. From there, take the Uno Bus for about 1h 30m.

Facilities with Analysis Reports

No facilities with registered analysis reports in this area yet.

Facilities Without Analysis Reports

Nearby Sightseeing & Local Cuisine

  • Yunogo Contemporary Toy Museum & Music Box Dream Hall
  • Birthplace of Miyamoto Musashi
  • Okayama International Circuit
  • Daisho-ji Temple (Hydrangea Temple)
  • Karakuri-dokei (Automaton Clock)
  • Chiya beef
  • Okayama Bara-zushi
  • Local fresh fruits (peaches, grapes)
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References

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