Yes, Sainokawara Open-Air Bath allows guests with tattoos without restrictions.
Nestled in the verdant highlands of Gunma Prefecture, Sainokawara Open-Air Bath (西の河原露天風呂) stands as a crown jewel within Kusatsu Onsen, one of Japan's most celebrated hot spring destinations. This magnificent 500m² bathing paradise invites you to soak in milky-blue healing waters while surrounded by the breathtaking beauty of seasonal nature—from snow-capped mountains in winter to vibrant autumn foliage.
Unlike many traditional bathing facilities in Japan, Sainokawara welcomes tattooed visitors with open arms, making it a perfect destination for international travelers seeking an authentic onsen experience without worry. Here, the therapeutic acidic waters—once praised by samurai shogun Minamoto no Yoritomo and Meiji-era German physician Dr. Erwin von Bälz—continue their centuries-old tradition of healing and rejuvenation for all who visit.
Fully Tattoo-Friendly: Sainokawara Open-Air Bath explicitly welcomes guests with tattoos to enjoy their bathing facilities without restrictions. No covering required for tattoos of any size during regular hours or Friday mixed-bathing sessions.
- Breathtaking Natural Setting: Immerse yourself in one of Japan's largest outdoor hot springs while surrounded by forest scenery that transforms magnificently with each season
- Therapeutic Healing Waters: Experience the renowned acidic sulfate-chloride springs (pH 2.1) that naturally sterilize the water and are celebrated for relieving joint pain, skin conditions, and fatigue
- Historic Significance: Bathe in the same waters that have attracted Japanese nobility and international visitors for centuries, including legendary shogun Minamoto no Yoritomo
- Mixed Bathing Opportunity: Enjoy the unique cultural experience of konyoku (mixed bathing) in swimwear during special Friday evening sessions—perfect for couples and families
- Complete Tattoo Freedom: Feel fully welcomed as a tattooed traveler in a traditional onsen setting without worry of judgment or restriction
Onsen Facilities & Amenities
Bathing Experience & Onsen Etiquette
Stepping into Sainokawara's expansive outdoor baths feels like entering another world—one where time slows and nature's embrace is complete. The distinctively milky-blue waters, heated naturally to 45-48°C by volcanic activity, carry a slight sulfuric aroma that signals their therapeutic potency. Unlike many onsen, you'll notice the absence of conventional showers; instead, you'll join locals in the traditional practice of rinsing with wooden ladles before immersion.
The highly acidic waters (pH 2.1) create a naturally antibacterial environment while delivering potent mineral benefits directly to your skin. Regular bathers report relief from chronic skin conditions, improved circulation, and remarkable recovery from fatigue. As you soak beneath open skies—perhaps starring at stars on winter nights or watching steam rise through autumn leaves—you'll understand why Kusatsu's waters have been revered for their healing properties since ancient times.
Prices & Ticket Options
- Adults: ¥600-800 (varies seasonally, higher in winter)
- Children (ages 3-12): ¥300-400
- Towel rental: ¥320
- Locker use: ¥100 (refundable)
Booking & Contact Information
No advance reservations are required for Sainokawara Open-Air Bath—simply arrive during operating hours to purchase your entry ticket. The facility can become busy during weekends and holidays, so weekday mornings offer the most peaceful experience.
🌐 Website: Sainokawara Open-Air Bath
📞 Phone: +81-279-88-6167
📍 Address: 521-3 Kusatsu, Agatsuma District, Gunma Prefecture 377-1711, Japan
Opening Hours
- Monday: 9:00 – 20:00
- Tuesday: 9:00 – 20:00
- Wednesday: 9:00 – 20:00
- Thursday: 9:00 – 20:00
- Friday: 9:00 – 20:00
- Saturday: 9:00 – 20:00
- Sunday: 9:00 – 20:00
Guest Reviews from Tattooed Travellers
Incredible open air and tattoo friendly onsen.
Very nice bath and tattoos are ok. It was nice to finally have acceptance for tattoos
This onsen consists of one giant outdoor hot pool with a nice view of the surrounding. The pool is so big, it can probably accommodate 80 people. But when I was there on a weekday afternoon in winter, I was nearly alone. There are no cold pool or even shower. Just a changing room with baskets (or lockers with key for 100 yen), and a toilet. You need to rinse yourself with a basket just before entering the pool. Entry price is 800 yen, and you can pay by credit card, IC card or cash. Most of the time, normal onsen rules apply: it is gender separated, you bathe naked and bring your small and big towel. I didn’t look for it, but I haven’t seen a no tattoo sign.
✈️ Tokyo Narita/Haneda Airport → 🚅 Train to Tokyo → 🚌 Direct bus from Shinjuku Station to Kusatsu Onsen Bus Terminal (4 hours) → 🚶 15-minute walk
🚅 Tokyo Station → 🚅 Shinkansen to Takasaki Station → 🚌 Local bus to Kusatsu Onsen (2.5 hours from Takasaki) → 🚶 15-minute walk
🚶 From Yubatake (Kusatsu's central hot spring field) → 🚶 12-minute scenic walk west through Sainokawara Park
Map
FAQ
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Overview