Gunma · Manza Onsen
Manza Kogen Hotel Sekitei Open-air Baths
万座高原ホテル 石庭露天風呂
At 1,800 m in Manza, four private sources feed eight open-air pools of milky, yellow and clear water — the famous 'Sekitei' rock-garden baths. Mixed bathing, but gowns or wrapped towels are required and there is a women-only pool. Day use 11 am–6 pm (last 5 pm), ¥1,700.
- Price (adult)
- ¥1,700
- Hours
- 11:00–18:00(last entry 17:00)
- Closed
- Irregular
- Access
- 5 min walk from Manza bus terminal
- Water type
- Sulfur spring
- Tattoos
- Ask ahead
- Phone
- 0279-97-1111
- Official site
- www.princehotels.co.jp/manza-kogen ↗
- 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
- Four springs, eight pools, different colours
- Gowns required — easy mixed bathing
- Bathe above the clouds at 1,800 m
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
Rules & private
Mood & scenery
Convenience
Amenities
✔ Verified operating: 2026-09 Yahoo!トラベル/温泉ぷらす 2026-07 (1,700円)
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.