Gunma · Manza Onsen
Manza Onsen Nisshinkan
万座温泉 日進舘
At 1,800 m, one of Japan's highest onsen. Milky water with some of the country's highest sulfur content, across nine tubs. Day use 10:00–17:00; prices rise in peak season.
- Price (adult)
- ¥1,000
- Hours
- day use 10:00–17:00(last entry 16:00)
- Closed
- Open daily
- Access
- 45 min by bus from JR Manza-Kazawaguchi Station
- Water type
- Sulfur spring
- Tattoos
- Ask ahead
- Phone
- 0279-97-3131
- Official site
- www.manza.co.jp ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Manza Onsen. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- 'Gokuraku-yu' open-air bath above the clouds at 1,800 m
- Top-class sulfur content
- Snow views in winter, stars in summer
Before you go
- No official tattoo policy is published — ask at reception.
- Ryokan day-use hours are limited and may be suspended in peak season — phone the same morning.
- Last entry is 30–60 minutes before closing.
Features
Mood & scenery
Convenience
Amenities
✔ Verified operating: 2026 manzaonsen.gr.jp / 2026-09 再確認（営業中）
Prices and hours change. Check official sources before visiting.
More in this area
Sainokawara Open-Air Bath
A 10-minute walk west of Kusatsu's Yubatake, at the far end of Sainokawara Park, lies one of Japan's largest open-air baths. Around 500 m² of pool brims with strongly acidic water, open to the surrounding forest. Snow in winter, fresh green in summer, illuminations at night. There are no washing stations — this is purely for soaking.
Otakinoyu
A large day facility where you can try Kusatsu's traditional 'awase-yu' — a row of wooden tubs at rising temperatures, entered in order. Indoor baths, rotenburo, sauna, plus rest and dining areas make it good for half a day. About 10 minutes' walk from the Yubatake, or a short bus ride. Admission ¥1,200 (2026); three-bath pass with Gozanoyu and Sainokawara ¥2,100.
Gozanoyu
Right in front of the Yubatake, a wooden recreation of the Edo–Meiji communal baths. Wood and stone bath halls alternate between men and women daily, with two sources (Yubatake and Bandaiko). The upstairs hall looks down on the Yubatake.