Right Onsen › Gunma › Katashina
Station of Flower Katashina Hanasaku Hot Spring
4.1★ · 1440 Google ratings · Katashina, Gunma · 花咲の湯
✓ Bedrock bath✓ Natural hot-spring water✓ Free-flowing source water✓ Outdoor bath✓ Rest area✓ Restaurant
Before you go
Can you bathe here?
Day visitors
✓ YesA dedicated day-use hot spring facility.stated by 3 visitors · May 2026 – Aug 2026
Hours
10:00–21:00from the facility listing
Tattoos
Not known · call aheadno policy stated in the 29 recent reviews we read or on the facility's website
The bath
What you’ll find
A polished modern day-use onsen resort near Oze in Katashina village, with mountain-view outdoor baths, a hot sauna and cold plunge, rock-bed sauna, restaurant, and garden grounds.
Outdoor bath
✓ YesMultiple outdoor baths with mountain views are the facility's main draw.stated by 6 visitors · Apr 2026 – Aug 2026
Sauna
✓ YesA sauna running around 95C is available, small (about 6 person capacity).stated by 3 visitors · May 2026 – Jul 2026
Cold bath
✓ YesA very cold plunge bath pairs with the sauna for a full sauna-cold cycle.stated by 1 visitor · May 2026
View
MountainOutdoor baths look out over the surrounding mountain ridgelines.stated by 3 visitors · May 2026 – Jul 2026
Rest area
✓ YesSpacious rest area including hammock seating on a terrace.stated by 4 visitors · Apr 2026 – Aug 2026
Restaurant
✓ YesAn on-site restaurant serves local dishes including soba and maitake-mushroom rice bowls, well reviewed.stated by 5 visitors · May 2026 – Aug 2026
The water
Spring type
Alkaline simple springA mild, non-mineral-heavy alkaline simple hot spring, marketed as good for the skin.stated by 3 visitors · Apr 2026 – Jul 2026
Guide
What visitors add
Outdoor bath & sauna
There is an open-air bath (rotenburo) with mountain views — mentioned by well over three distinct reviews (May–Aug 2026) — plus a sauna and cold plunge: one reviewer (May 2026) reports the sauna at about 95°C with a very cold plunge, and another (Jul 2026) reports the sauna is small, seating about six. Stone-bed bathing (ganbanyoku) is mentioned by at least three distinct reviews.
stated by 8 visitors · May 2026 – Aug 2026The water
The water is a mild, non-irritating alkaline simple hot spring; at least four distinct reviews (Apr–Jul 2026) describe it as alkaline simple onsen or as having a smooth, non-clinging quality, and one reviewer notes the outdoor bath temperature is on the cool side for long soaking.
stated by 5 visitors · Apr 2026 – Aug 2026Staffing
The facility is staffed — at least four distinct reviews (Apr–Aug 2026) mention reception, cleaning, restaurant, or floor staff and praise their service.
stated by 5 visitors · Apr 2026 – Aug 2026Day-use visits
The facility operates as a day-use (higaeri) onsen — at least three distinct reviews (May–Aug 2026) call it a day-trip onsen facility; no reviewer states opening hours.
stated by 3 visitors · May 2026 – Aug 2026Towels, soap & lockers
One reviewer (Aug 2026) reports washing stations are available even in the outdoor bath and that outdoor-bath-only use is possible; a separate reviewer (Jun 2026) reports a baby bath chair is available. No reviewer mentions towels, soap provision, or lockers.
stated by 2 visitors · Jun 2026 – Aug 2026Bathing arrangement
One reviewer (May 2026) reports there are two bath areas that swap between men and women on alternating days; another reviewer (May 2026) names the two outdoor baths as 'Kaze no Yu' and 'Kaori no Yu'. Not a mixed-bathing facility per these accounts.
stated by 2 visitors · May 2026Timing
When to go
Quietest Wednesday around 10:00; busiest Saturday around 17:00. Measured by Google over past visits, not a forecast.
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Quiet Busy
| Day | Hours |
|---|---|
| Monday | 10:00–21:00 |
| Tuesday | 10:00–21:00 |
| Wednesday | 10:00–20:00 |
| Thursday | 10:00–20:00 |
| Friday | 10:00–20:00 |
| Saturday | 10:00–21:00 |
| Sunday | 10:00–21:00 |
Practical
Plan your visit
📍 1113 Hanasaku, Katashina, Tone District, Gunma 378-0408
🚃 Numata station, 18.9 km
📞 +81278-20-7111
📋 Show at the counter: 花咲の湯
Nearby
Other baths close by
Numata · 3.8★
Katashina · 3.9★
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