Solaniwa Onsen Osaka Bay Tower - A Tattoo-Friendly Hot Spring in Osaka City, Osaka

Nestled within the modern Osaka BAY TOWER, Solaniwa Onsen transports you to Japan's opulent Azuchi-Momoyama period (1573-1603) while providing the comforts of contemporary luxury. As Kansai's largest hot spring theme park, this 16,500-square-meter urban retreat offers tattooed travelers a chance to experience authentic Japanese bathing culture without the stress of rejection. Opened in 2019, Solaniwa draws its healing waters from 1,000 meters beneath the earth's surface, creating a perfect blend of historical ambiance and modern accessibility in the heart of Osaka.

Cover-Ups Required for public baths; Private Bathing Allowed. While the public bathing areas require tattoos to be covered with adhesive bandages (conveniently provided on-site), Solaniwa offers a stress-free alternative with their private outdoor bath reservations where tattooed guests can soak freely without covering up.

• Immersive Historical Theme: Experience the grandeur of Japan's Azuchi-Momoyama period with authentic architecture, garden design, and cultural touchpoints  
• Urban Convenience: Located just steps from Bentencho Station, it's the perfect urban retreat without traveling to remote onsen towns  
• Impressive Variety: Nine different bath types and seven saunas spread across a massive facility with a stunning 3,000 m² rooftop garden  
• International-Friendly: Multi-lingual staff and signage make navigation comfortable for non-Japanese speakers  
• Perfect for Groups: Private bath options accommodate families and friend groups with tattoos who want to enjoy together  
• Photography Paradise: Thousand Torii Gates, seasonal garden displays, and period architecture create Instagram-worthy moments

Solaniwa's weakly alkaline, hypotonic waters emerge from deep beneath Osaka Bay, offering therapeutic benefits that locals have treasured for generations. The 42°C baths are known to soothe nerve pain, ease muscle tension, and alleviate joint discomfort—perfect for travelers with tired legs after exploring Osaka's attractions.  What makes Solaniwa unique is the thoughtful balance between tradition and comfort. Float in open-air baths beneath the sky while gazing at meticulously designed Japanese gardens, or try the carbonated baths that blanket your skin in tiny bubbles for a champagne-like sensation. For tattooed visitors who prefer privacy, the reserved outdoor baths provide an intimate experience with personal garden views—allowing you to fully immerse yourself in the onsen experience without concerns about covering up.

• Weekday Adult Admission: ¥2,640  
•  Weekend/Holiday Adult Admission: ¥2,860  
•  Morning Special (11:00 AM–2:00 PM): ¥1,320 (best value!)  - Private Outdoor Bath: ¥4,000–¥7,000 per hour (varies by bath size)  
• Parking: ¥200/hour (validation discounts available for onsen guests)  
• Towel Rental: Available at additional cost  
• Bath Amenities: Basic amenities included; premium items available for purchase

No advance reservations are required for general admission, though booking ahead is recommended for private outdoor baths, especially during weekends and holidays. English-speaking staff are available to assist with reservations by phone.  

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🌐 Website: https://solaniwa.com/en-us/ 

📞 Phone: +81-6-7670-5126 

📍 Address: 2F Bay Tower North, 1-2-3 Benten, Minato-ku, Osaka 552-0007

• Monday 11:00–23:00
• Tuesday 11:00–23:00
• Wednesday 11:00–23:00
• Thursday 11:00–23:00
• Friday 11:00–23:00
• Saturday 11:00–23:00
• Sunday 11:00–23:00