Shimane has been a hot spring prefecture since the eighth century — its waters appear in the Nihon Shoki (Japan’s second-oldest chronicle, written in 720 AD) as therapeutic destinations worth the journey. That continuity is not a marketing claim. Tamatsukuri Onsen has been in continuous operation for over 1,300 years. Yunotsu has mineral springs so potent they are protected as UNESCO World Heritage assets in their own right. These are not resort developments built around ordinary hot water. The water itself is the point.
Tamatsukuri Onsen: “Waters That Beautify”
Tamatsukuri Onsen (Tama = jewel/beauty, tsukuri = creating) sits along the Tamayu River about 20 minutes east of Matsue by train. The Nihon Shoki describes its waters as restoring youth and beauty to those who bathe — a claim that has drawn visitors from the Nara period onward. The springs are alkaline bicarbonate, with a silky, almost slippery texture on the skin. This is caused by sodium bicarbonate, which very mildly dissolves the outermost layer of dead skin cells, leaving the skin noticeably smoother after a single soak. The effect is real and measurable, which is why skin-beautifying (bihada) claims attach specifically to alkaline springs like these.
What to See in Tamatsukuri
The hot spring resort is compact — a single river valley with hotels on both banks connected by small bridges. An atmospheric evening walk along the riverside path, lit by stone lanterns, is one of Shimane’s understated pleasures.
Free Foot Bath: A public foot bath sits next to the river, open to all visitors at no cost. This is a good first stop after arriving, and allows you to feel the water quality before committing to a full bath.
Tamatsukuri Karakoro Art Studio: A renovated 1920s bank building turned into a craft and art space where local artisans sell Shimane pottery, glasswork, and accessories. The former bank vault is preserved as a display room. Entry is free; shopping is optional but the quality of work here is genuine. Open 9:00–18:00.
Tamatsukuri Jinja: A small shrine at the edge of the resort area, dedicated to the deity of jewels and craft. The shrine connects to Shimane’s ancient agate and jasper industry — Izumo has been Japan’s primary source of decorative stone beads (magatama) since the Yayoi period (300 BC–300 AD). The shrine sells magatama amulets as souvenirs.
Ryokan Recommendations
Yuen Suitou — One of the most architecturally impressive ryokan in western Japan. The building uses traditional craftwork throughout: carved woodwork, lacquered details, tatami rooms with private viewing gardens. The large public baths use Tamatsukuri’s alkaline spring water. Dinner is kaiseki with San’in coastal seafood. Rates: from approximately ¥25,000 per person per night with dinner and breakfast.
Chikurintei — A more intimate, smaller-scale ryokan with bamboo garden views and a quieter atmosphere. The spring water quality is the same as the larger properties (all draw from the same source). Better suited to travelers who find large resort ryokan overwhelming. Rates: approximately ¥18,000–22,000 per person with meals.
Budget option: Day-use bathing (higaeri nyuyoku) is available at several hotels including Tamatsukuri Onsen Gyokan for around ¥800–1,200. This allows access to proper alkaline spring baths without an overnight stay.
Access: JR Sanin Line to Tamatsukuri-onsen Station, then 5-minute walk to the resort. From Matsue Station, about 20 minutes.
Yunotsu Onsen: UNESCO Heritage Waters
Yunotsu (Yu = hot water, notsu = field) is a small onsen town on the Sea of Japan coast in the Iwami region, about 90 minutes west of Matsue by rail. It is listed as a UNESCO World Heritage Site not for its springs directly, but because it was the primary port through which silver from the nearby Iwami Ginzan mine was shipped to the coast — the town’s historic infrastructure, warehouses, and townscape are part of the World Heritage inscription.
The spring water, however, deserves its own recognition. Yunotsu’s mineral springs are among the highest in mineral content in Japan — classified as a sodium-calcium-iron sulfate-chloride spring, heavy with dissolved minerals that visibly tint the water and leave rust-orange deposits on surfaces where the water contacts stone. This is genuinely medicinal water in the sense that it contains concentrations of minerals with documented cardiovascular and circulation effects.
The Public Baths
Yakushi-yu — The primary public bathhouse in Yunotsu, open to all visitors for ¥300. The building is traditional, the baths are small and intimate, and the water is the real, undiluted mineral spring drawn directly from the source. The rust-orange staining around the taps and tub edges is a mark of authenticity — this is not water that has been diluted or temperature-controlled to the point of losing its mineral character. Locals use this bath daily. Open from early morning; check locally for current hours.
Motoyu — A second public bath drawing from one of the oldest springs in the area. Slightly hotter than Yakushi-yu, and even more concentrated in minerals. Some visitors alternate between the two baths in the same visit. Entry also around ¥300.
The town itself is worth wandering: traditional wooden facades, narrow lanes, a riverside street of old merchants' buildings. It feels almost entirely unchanged from several decades ago — not because it was preserved artificially, but because tourism never overwhelmed it enough to force redevelopment.
Access: JR Sanin Line to Yunotsu Station, then a 10-minute taxi or 20-minute walk to the onsen district. Trains from Matsue take approximately 1 hour 30 minutes; from Hiroshima about 2 hours. There is limited bus service — check timetables before planning a day trip, as trains can run infrequently on this section of line.
Shimane Peninsula Coastal Onsen
The Shimane Peninsula, the long narrow strip of land that juts into the Sea of Japan north of Matsue, has several smaller onsen facilities. These are less famous than Tamatsukuri or Yunotsu, but offer the specific pleasure of bathing with Sea of Japan views. Several fishing village inns (minshuku) and small hotels along the peninsula have private spring baths drawn from local ground sources. Water types vary along the peninsula, generally sodium chloride (salt springs) that warm the body efficiently in the cold sea winds.
These are best accessed by rental car, as public transport on the peninsula is sparse. If you are driving the peninsula to visit Hinomisaki Cape and Izumo Taisha, it is worth checking whether your accommodation for the night has a spa facility.
Practical Onsen Guide
Water Types Summary
| Onsen | Water Type | Primary Effects |
|---|---|---|
| Tamatsukuri | Alkaline bicarbonate | Skin softening, bihada |
| Yunotsu | Sodium-calcium-iron sulfate | Circulation, cardiovascular |
| Peninsula springs | Sodium chloride | Warming, fatigue recovery |
Etiquette Essentials
- Wash thoroughly at the shower stations before entering any communal bath. Every onsen has shower seats and wash areas — use them properly before getting in.
- No swimwear in traditional onsen. Mixed-gender bathing (konyoku) is extremely rare in Shimane; most facilities have separate men’s and women’s sections.
- Tie long hair back or up. Hair should not touch the water in shared baths.
- Towels stay outside the bath. You can use a small towel for modesty walking between areas, but fold it on the edge of the tub or place it on your head — do not dip it in.
- Enter slowly. Onsen water temperatures typically run 40–43°C (104–110°F). Entering slowly helps your body adjust.
Tattoo Policy
Tattoos are prohibited at most traditional onsen and ryokan in Shimane, as is common across Japan. A small number of accommodations have private rooms with attached baths (kashikiri buro or kakenagashi) that can be booked exclusively by one group — this is an option for tattooed travelers at places like Chikurintei if reserved in advance. Ask directly when booking.
What to Bring
A small towel for drying is standard. Most ryokan provide yukata robes and complimentary toiletries (shampoo, conditioner, body wash). For public bathhouses like Yakushi-yu, bring your own towel and toiletries, or purchase them at a vending machine at the entrance (¥100–200 each).
Day-Trip vs. Overnight Strategy
Tamatsukuri as a day trip from Matsue: Entirely feasible. The 20-minute train ride and the free foot bath mean you can experience the water quality without booking a room. Allow 2–3 hours to walk the riverside, visit the art studio, and try the foot bath.
Yunotsu as a day trip: More demanding. The 90-minute train ride means a full-day commitment if coming from Matsue. Combine it with a visit to Iwami Ginzan Silver Mine (30 minutes inland) to justify the travel time. An overnight stay in Yunotsu’s small guesthouses is a more relaxed option and gives you access to the public baths early morning and late evening, when they are quietest.
The recommendation, if time allows: spend one night in Tamatsukuri for the full alkaline-spring ryokan experience, and arrange a morning day trip to Yunotsu to experience genuinely different water.
