Right Onsen › Gunma › Kiryu
Mizunuma Onsen
3.7★ · 841 Google ratings · Kiryu, Gunma · 駅の天然温泉 水沼の湯
Can you bathe here?
How we know this
- Day visitors: stated on the facility's website, read 2026-09
- Closed: stated on the facility's website, read 2026-09
- Last entry: stated on the facility's website, read 2026-09
- Tattoos: stated on the facility's website, read 2026-09
- Price: Weekend/holiday admission is 1550 yen including a 150 yen bathing tax; several reviewers call this steep for the facility's small size, and total cost rises toward 2000 yen with rental towel. · 2 visitors, May 2026
- Child price: stated on the facility's website, read 2026-09
- Bathing arrangement: Men's and women's baths are separate. · 2 visitors, Apr 2026 – May 2026
What you’ll find
A recently renovated (spring 2025) onsen built directly into Mizunuma Station on the Watarase Keikoku Railway, with one small indoor and one small outdoor bath, a well-liked self-loyu sauna, an attached restaurant, and frequent complaints that admission is steep for the small bathing space.
How we know this
- Indoor baths: There is one indoor bath. · 2 visitors, Apr 2026 – May 2026
- Outdoor bath: A small outdoor bath (4-person capacity) exists, but one reviewer reports the larger outdoor bath was closed for maintenance for an extended period. · 6 visitors, Apr 2026 – Jun 2026
- Outdoor baths: There is one outdoor bath. · 2 visitors, Apr 2026 – May 2026
- Sauna: A self-service loyu (water-on-stones) sauna is popular with reviewers. · 7 visitors, Apr 2026 – Aug 2026
- Cold bath: A small (2-person) cold plunge exists; one reviewer found it uncleaned with visible sediment. · 3 visitors, May 2026
- View: The bath and rest area look out over green mountains. · 3 visitors, May 2026 – Aug 2026
What you need
How we know this
- Towels: Towels are not included and cost extra as a paid rental. · 3 visitors, May 2026
- Rest area: A well-equipped rest area with nap rooms and free massage chairs is available. · 4 visitors, May 2026
- Restaurant: An adjoining restaurant serves local dishes like kamameshi and okkirikomi, though a few reviewers criticize menu execution and staff attentiveness. · 6 visitors, Apr 2026 – Aug 2026
When to go
Quietest Thursday around 20:00. Busiest Sunday around 13:00.
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Quiet Busy
Based on Google visit patterns, not a forecast.
| 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 | 10:00–21:00 |
| Sunday | 10:00–21:00 |
Closed Weekdays (September 2026 onwards; historically weekdays off-season).
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