Right Onsen › Gunma › Isesaki
Sumi-no-Yu
3.7★ · 52 Google ratings · Isesaki, Gunma · 寿美乃湯
Before you go
Can you bathe here?
Price
¥450Current adult entry is 450 yen, up from 400 yen in older reviews.stated by 4 visitors · Mar 2024 – Apr 2026
Hours
15:00–21:00from the facility listing
Tattoos
Not known · call aheadno policy stated in the 33 recent reviews we read or on the facility's website
The bath
What you’ll find
A roughly 100-year-old, wood-fired neighborhood sento in Isesaki with two small indoor tubs, resident cats, and a strongly divisive lived-in, dusty atmosphere that some visitors find charmingly retro and others find genuinely unhygienic.
Outdoor bath
NoDetailed layout descriptions cover only two indoor tubs against the back wall; no outdoor bath appears in any review.stated by 1 visitor · Sep 2022
Indoor baths
2Two small indoor tubs of differing depth, same temperature.stated by 5 visitors · Oct 2020 – Oct 2025
Practical
What to bring
Soap & shampoo
Not provided — bring your ownNo soap, shampoo, or body wash is provided; bring your own.stated by 3 visitors · Oct 2020 – Apr 2026
Lockers
✓ FreeLockable storage is free.stated by 3 visitors · Oct 2020 – Mar 2023
Guide
What visitors add
Price
Adult admission is 450 yen in reviews from 2024-2026 (3 reviewers); five earlier reviewers (2020-2023) reported 400 yen, one of them itemizing 400/180/80 yen for adult/middle/child.
stated by 8 visitors · Oct 2020 – Apr 2026Outdoor bath & sauna
There are exactly two indoor tubs — one deep, one shallow (8 reviewers) — around 40°C / 'just right' per 5 reviewers; one reviewer states there is no sauna, electric bath or other modern equipment, and no reviewer mentions any outdoor bath.
stated by 8 visitors · Oct 2020 – Oct 2025Towels, soap & lockers
No soap, shampoo or amenities are provided — bring everything (3 reviewers). Free key lockers exist (3 reviewers; one other says the changing room has only baskets), a hair dryer costs 20 yen per 3 minutes (1 reviewer), and retro wooden lockers are on the men's side only (1 reviewer).
stated by 8 visitors · Oct 2020 – Apr 2026The water
This is a circa-1925 wood-fired sento, not a hot spring: one reviewer states the fuel is firewood (two others mention the smoking chimney), and four describe medicated or additive baths — a blue bath-salt bath, an amber-colored bath, and a seasonal yakuyu that warms to the core.
stated by 7 visitors · Mar 2020 – Apr 2026Staffing
A traditional staffed bandai (attendant's perch) sits right inside the door — at least five reviewers describe the elderly owner or family at the bandai, mostly warmly; one found the attendant absent with the men's changing room in open view, and one complains of poor attitude.
stated by 7 visitors · Jul 2018 – Feb 2026Towels, soap & lockers
Three reviewers report the showers/taps never warm up or take very long to do so — one scooped tub water to wash, and one warns the karan hot tap alone is scalding and must be mixed with cold by hand.
stated by 3 visitors · Mar 2020 – Oct 2025Timing
When to go
| Day | Hours |
|---|---|
| Monday | 15:00–21:00 |
| Tuesday | 15:00–21:00 |
| Wednesday | 15:00–21:00 |
| Thursday | 15:00–21:00 |
| Friday | 15:00–21:00 |
| Saturday | 15:00–21:00 |
| Sunday | 15:00–21:00 |
Practical
Plan your visit
📍 7-18 Midoricho, Isesaki, Gunma 372-0043
🚃 Shin-Isesaki station, 0.5 km
📞 +81270-25-3542
📋 Show at the counter: 寿美乃湯
Nearby
Other baths close by
Isesaki · 3.8★
Isesaki · 3.8★
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