Right Onsen › Gunma › Nakanojo
Shima Seiryu-no-yu Public Bath
4.1★ · 965 Google ratings · Nakanojo, Gunma · 四万清流の湯
✓ Natural hot-spring water✓ Outdoor bath✓ Rest area
Before you go
Can you bathe here?
Day visitors
✓ YesA town-run day-use bathhouse, one of several public baths in the Shima onsen area.stated by 3 visitors · May 2026 – Jun 2026
Price
¥600Standard admission is 600 yen for 2 hours, discounted to 300 yen for town residents.stated by 7 visitors · Dec 2025 – Jun 2026
Bathing arrangement
Men and women separateMen's and women's baths are separate, but the men's outdoor bath is visible from a public bridge, and a posted notice says female staff may enter the men's bath area.stated by 3 visitors · Mar 2026
Time limit
2 hoursEntry is sold as a 2-hour ticket, though most bathers don't stay anywhere near that long.stated by 7 visitors · Dec 2025 – Jun 2026
Tattoos
Not known · call aheadno policy stated in the 26 recent reviews we read or on the facility's website
Watch out
Bathing arrangement
Men's and women's baths are separate, but the men's outdoor bath is visible from a public bridge, and a posted notice says female staff may enter the men's bath area.
stated by 3 visitors · Mar 2026The bath
What you’ll find
A clean, well-run town-operated day-use bathhouse in Shima Onsen with a naturally hot, unheated kakenagashi spring, a riverside outdoor bath, full amenities, and a 2-hour ticket system, though operating hours have recently been shortened and can vary.
Outdoor bath
✓ YesAn outdoor bath alongside the indoor one is repeatedly described, overlooking the Shima river.stated by 8 visitors · Nov 2025 – Aug 2026
View
RiverThe outdoor bath overlooks the Shima river.stated by 4 visitors · Nov 2025 – Aug 2026
Rest area
✓ YesA tatami rest area and lobby with sofas and a stove are provided.stated by 2 visitors · Dec 2025 – Jun 2026
Restaurant
NoNo in-house restaurant, though vending machines and a drinking-water station are available.stated by 1 visitor · Dec 2025
The water
Free-flowing (kakenagashi)
✓ YesConfirmed as source-fed kakenagashi water.stated by 2 visitors · Apr 2026 – Dec 2025
Practical
What to bring
Soap & shampoo
✓ ProvidedSoap, shampoo, and conditioner are all provided.stated by 3 visitors · May 2026 – Aug 2026
Guide
What visitors add
Price
Adult admission is 600 yen for a 2-hour slot — reported by at least seven reviewers from Dec 2025 through Jun 2026. One reviewer adds that Nakanojo town residents pay 300 yen.
stated by 8 visitors · Nov 2025 – Jun 2026The water
Colorless, transparent water (two reviewers) that leaves skin smooth (two reviewers report tsuru-tsuru/sube-sube skin). On the hot side: one reviewer measured indoor and outdoor tubs at 42 degrees C and the waterfall bath at 41; three others describe the indoor bath as hot.
stated by 8 visitors · Nov 2025 – Aug 2026Outdoor bath & sauna
There is one indoor bath and one outdoor bath (four reviewers), plus a waterfall (utase-yu) bath per one reviewer; no reviewer mentions a sauna. The rotenburo overlooks the Shima River — at least four reviewers praise the river view/sound. Privacy caveat: one reviewer (Mar 2026) says the men's rotenburo is fully visible from the opposite bank and the bridge in front.
stated by 6 visitors · Jan 2026 – Aug 2026Day-use visits
SHORTENED HOURS in 2026: four reviewers (May-Jul 2026) report temporarily reduced operating hours — one says closing is 16:30 'for the time being' (May), another complains it now ends at 17:00 (Jul). One reviewer (Dec 2025) also noted a roughly one-week closure from 24 Dec 2025 and advises checking the website.
stated by 5 visitors · Dec 2025 – Jul 2026Day-use visits
Crowd management: four reviewers report entry caps or time limits when busy — one saw the women's bath under entry restriction on a weekend evening (Aug 2026), one reports waits of 10 minutes to 1 hour at peak and warns entry may stop near closing, and one notes a 2-hour limit enforced during Golden Week.
stated by 4 visitors · May 2026 – Aug 2026Staffing
A staffed municipal (town-run) facility — two reviewers call it 町営/公営. Staff impressions conflict: one reviewer (Feb 2026) found a male staff member overbearing and another (Jul 2026) complained of unmotivated staff, while one (Dec 2025) praises the facility as well managed.
stated by 4 visitors · Dec 2025 – Jul 2026Practical
Plan your visit
📍 3830-1 Shima, Nakanojo, Agatsuma District, Gunma 377-0601
🚃 Nakanojo station, 11.6 km
📞 +81279-64-2610
📋 Show at the counter: 四万清流の湯
Nearby
Other baths close by
Nakanojo · 4.3★
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