Right Onsen › Gunma › Katashina
Onsen & Lounge MONE (Mone-no-Yu)
4.0★ · 7 Google ratings · Katashina, Gunma · Onsen & Lounge MONE〜木音の湯〜
✓ Natural hot-spring water✓ Free-flowing source water✓ Rest area✓ Restaurant
Before you go
Can you bathe here?
Day visitors
✓ Yesstated on the facility's website · read 2026-09
Hours
08:00–21:00 · closed Monday, Tuesday, Wednesday, Thursdayfrom the facility listing
Price
¥1,650Base rate is 1650 yen for 90 minutes, with an unlimited-time option at 3300 yen.stated by 2 visitors · Jan 2025 – Aug 2025
Time limit
90 minutes (or unlimited day pass for 3300 yen)Standard visits are capped at 90 minutes unless paying extra for an unlimited-time pass.stated by 2 visitors · Jan 2025 – Aug 2025
Tattoos
Not known · call aheadno policy stated in the 9 recent reviews we read or on the facility's website
The bath
What you’ll find
A stylish manga-cafe/lounge-and-onsen hybrid inside the Oze Iwakura ski resort hotel, run by the 'ofuro cafe' chain, offering kakenagashi alkaline sulfur water, a large book library, kids area, and unlimited alcoholic drinks, though one reviewer found the bath itself small and dated.
Sauna
✓ YesHas a sauna, though one reviewer found it old and left quickly.stated by 2 visitors · Feb 2025 – Mar 2025
Rest area
✓ YesExtensive lounge area with roughly 6000 books/manga, partitioned relaxation nooks, and a jazz-playing ambience.stated by 3 visitors · Jan 2025 – Mar 2026
The water
Spring type
Alkaline simple sulfurClassified as an alkaline simple sulfur spring.stated by 1 visitor · Feb 2025
Guide
What visitors add
Day-use visits
Day-use is offered (one reviewer labels it simply a day-trip onsen), and reception accepts entry until 19:30 per one repeat visitor, convenient for after skiing at the adjacent Oze Iwakura slopes.
stated by 2 visitors · Apr 2026 – Jun 2026Price
Two reviewers report lounge pricing of 1,650 yen for 90 minutes; one of them adds a free-time (unlimited) option at 3,300 yen. One reviewer notes drinks including alcohol are all-you-can-drink, which another says makes it a better deal for drinkers.
stated by 2 visitors · Jan 2025 – Aug 2025The water
One reviewer (February 2025) describes the water as an alkaline simple sulfur spring run as free-flowing from the source (kakenagashi). Impressions of the bath itself conflict: that reviewer calls the onsen spacious, while another (March 2025) says the bath area was not renovated in the 2024 refit and is a small, old-guesthouse-style bath not worth visiting for the onsen alone.
stated by 2 visitors · Feb 2025 – Mar 2025Outdoor bath & sauna
A sauna exists (two reviewers), but the only reviewer who describes it says it is old and they left quickly. No open-air bath (rotenburo) is mentioned in any review.
stated by 2 visitors · Feb 2025 – Mar 2025Timing
When to go
| Day | Hours |
|---|---|
| Monday | Closed |
| Tuesday | Closed |
| Wednesday | Closed |
| Thursday | Closed |
| Friday | 08:00–21:00 |
| Saturday | 08:00–21:00 |
| Sunday | 08:00–21:00 |
Closed Monday, Tuesday, Wednesday, Thursday.
Practical
Plan your visit
📍 2609 Tsuchiide, Katashina, Tone District, Gunma 378-0412
🚃 Yubiso station, 20.7 km
📞 +81278-58-7131
📋 Show at the counter: Onsen & Lounge MONE〜木音の湯〜
Nearby
Other baths close by
Katashina · 4.2★
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