Shimizuyu in Koka: A Taisho-Era Sento in Minakuchi
Visit Shimizuyu, a tiny Taisho-era sento near Minakuchi’s old Tokaido. Check current listed prices, hours, well-water details and the walk from the station.
Shimizuyu is a compact neighborhood bathhouse in Minakuchi, about a five-minute walk from Minakuchi-Ishibashi Station and the old Tokaido post town. The draw is its working-bathhouse character: a traditional bandai counter, wooden shoe cupboards and lockers, one bathing tub, and a boiler fired with sawdust. It suits a short soak after exploring Minakuchi; anyone expecting a sauna, several pools or a resort-style onsen will be happier elsewhere.
One distinction matters here. Shimizuyu uses deep-well water associated with the Mount Kojo area, but the material available does not establish a current legal hot-spring classification or publish an analysis sheet. The iron-rich well water is part of the bathhouse’s story, not proof that this is a natural onsen.
A working sento with a small, old-fashioned bath
The owner described Shimizuyu in a 2021 interview as a bathhouse founded in the late Taisho period. The bandai—a raised attendant’s counter—along with the wooden lockers and shoe cupboards, gives the entrance a very different feel from a modern spa. The bathing room itself is small, with a single tub and limited washing space.
Shimizuyu is a compact neighborhood bath, not a sauna complex: its published facilities list no sauna, cold plunge, outdoor bath, lounge or restaurant. For a sauna-and-plunge setup, compare it with Sakurayu in Kusatsu or browse the Shiga sento guide.
Admission: listed prices through September 30
The latest fare listing reviewed gives these standard admission prices:
| Visitor | Listed admission |
|---|---|
| Adult | ¥490 (about HK$24 / NT$99) |
| Elementary-school child | ¥150 (about HK$7 / NT$30) |
| Preschool child | ¥100 (about HK$5 / NT$20) |
These are Shimizuyu’s listed fares as of September 30, 2026. Currency conversions are approximate, using rates around that date; your card provider may use a different rate. Older articles quoting ¥450 refer to a previous price.
October 1 legal ceilings are not confirmed Shimizuyu fares
Shiga Prefecture’s new regulated maximum takes effect on October 1, 2026. A maximum is a legal ceiling, not an automatic price change at every bathhouse. Shimizuyu’s actual post-change admission has not been confirmed.
| Age group | Legal maximum from October 1—not a confirmed Shimizuyu fare |
|---|---|
| Adult, age 12 and over | ¥550 (about HK$27 / NT$111) |
| Child, age 6 to under 12 | ¥200 (about HK$10 / NT$40) |
| Child under 6 | ¥100 (about HK$5 / NT$20) |
Before visiting on or after October 1, check the bathhouse’s posted fare or call.
Hours, Wednesday closure and what to bring
Current bath listings give Shimizuyu’s hours as 4–10 p.m., with Wednesdays off. The address is 2-5-10 Honmachi, Minakuchi-cho, Koka, Shiga; the phone number is 0748-62-2666. There is no dependable live schedule, so a call is sensible before making a special trip—particularly around holidays or if you are arriving close to closing time.
The bathhouse does not publish a complete current list of toiletries, towel rentals or payment methods. Bring cash, a small towel, and your own soap and shampoo rather than relying on a full set of spa amenities. Tattoo rules are also not clearly published; call ahead if that determines whether you can visit.
Deep-well water and the sawdust-fired boiler
Shiga’s public-bath guide describes a deep well drawing water from the Mount Kojo area and notes its relatively high iron content. That is a distinctive water source, but it does not substitute for a current hot-spring analysis. No current document reviewed establishes Shimizuyu’s spring classification, water chemistry, pH, source temperature or flow rate, so it is best described as a sento using well water.
The heating method is another part of the old bathhouse’s appeal. In the interview, the owner described a direct-fired boiler using ogako—fine sawdust produced by woodworking. The well water is heated on site; the boiler is not evidence of naturally hot spring water or a free-flowing source. If a legally classified natural onsen is the priority, look at day-use baths around Koka and Konan or Miyano Onsen instead.
Getting there from Minakuchi-Ishibashi Station
Minakuchi-Ishibashi on the Ohmi Railway is the closest station. The walk is about four to five minutes, making the final leg manageable without a car. The longer journey takes more planning: from Kyoto, Otsu or Kusatsu, travel to Kusatsu and take the JR Kusatsu Line toward Kibukawa, then change to the Ohmi Railway.
That makes Shimizuyu an easy end to a day already spent in Koka, but an awkward reason for a long round trip on its own. Pair it with a walk through the old Tokaido and Minakuchi’s former post-town area, then arrive after the bath opens at 4 p.m. If your plans are based in Otsu, the Otsu sento comparison covers baths closer to the city.
Parking information is inconsistent: the prefectural public-bath guide lists four spaces, while another current directory lists five. Treat the lot as small and call if having a space is essential. The Shiga no-car day-onsen guide can help if you are building a wider public-transport itinerary.
Is it worth adding to a Koka itinerary?
For a quick local bath, the admission is modest and the station walk is short. The trade-off is the limited facility: there is just one tub, little room to linger, and no confirmed sauna or natural hot-spring status. A larger day-use facility will offer more amenities; Shimizuyu has a different appeal in its old fixtures, small scale and sawdust-fired heating system.
It makes most sense after a Minakuchi walk or as part of a wider Shiga bathhouse trip. If the bath itself is the only reason to travel from Kyoto or Otsu, the rail transfers and early 10 p.m. closing leave a lot of effort for a very simple soak. For other options around the region, see the Koto and Higashiomi day-onsen guide or the Koka–Konan day-bath guide.
Frequently asked questions
Is Shimizuyu a natural hot spring?
No current hot-spring analysis or legal classification was found. Shimizuyu uses deep-well water, described in local bathhouse material as relatively iron-rich, and heats it in a boiler. That is different from a legally documented natural onsen.
Does it have a sauna?
The facility descriptions reviewed do not list one. The owner’s interview describes a single-tub bathhouse, so choose another sento if sauna access is essential.
What does admission cost?
See the admission table above for the latest listed fares. The separate table gives the new legal ceilings from October 1; Shimizuyu’s actual post-change prices have not been confirmed.
Can visitors with tattoos enter?
No clear current tattoo policy is published. Check directly with the bathhouse before visiting if you need a definite answer.
