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くろふね / CC BY 3.0
Sainokawara Open-Air Bath
西の河原露天風呂Gunma · Kanto
Sainokawara Rotenburo is a large open-air public bath at the top of Sainokawara Park, roughly a 12-minute walk west of the Yubatake through a valley of steaming streams and rocks. At around 500 square meters and separated into men's and women's sides, it is one of the biggest rotenburo in the region and can hold about 100 bathers at once.
- Crowd level
- Moderate
- Opening hours
- Daily 7:00 AM – 8:00 PM (Dec 1–Mar 31 opens 9:00 AM); last entry 7:30 PM
- Admission
- Adults ¥800, children (ages 3–12) ¥400 (official rate; some third-party guides still list an older ¥700). Seasonal hours: Apr 1–Nov 30 open 7:00 AM, Dec 1–Mar 31 open 9:00 AM; last entry 7:30 PM year-round. Weekly evening mixed-bathing session on Fridays (swimwear/towel permitted).
- Nearest station
- No rail access — JR bus ~25 min from Naganohara-Kusatsuguchi Station to Kusatsu Onsen Bus Terminal, then ~15 min walk via Sainokawara Park
Usual hours — confirm with the official site for holidays + seasonal closures.
Today
7:00–20:00Admission
- Adults ¥800, children (ages 3–12) ¥400 (official rate; some third-party guides still list an older ¥700). Seasonal hours: Apr 1–Nov 30 open 7:00 AM, Dec 1–Mar 31 open 9:00 AM; last entry 7:30 PM year-round. Weekly evening mixed-bathing session on Fridays (swimwear/towel permitted).
Stored weekly hours
Daily 7:00 AM – 8:00 PM (Dec 1–Mar 31 opens 9:00 AM); last entry 7:30 PM
Tags
onsenrotenburonature
Location
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