Solaniwa Onsen

In short

A hot spring theme park inside the Osaka Bay Tower complex, which is directly connected to Bentencho Station by a pedestrian walkway. Inside the facility, which recreates the charming streets of old Osaka, there are natural hot spring baths, bedrock baths, festival games, and more, and visitors spend their time inside in yukata provided by the facility as loungewear.

• ​Niwamiburo and Gensen-buro​​: The Niwamiburo is an infinity bath overlooking a Japanese garden of about 1,000 tsubo and is the most renowned feature of Solaniwa Onsen (there are hours when the garden cannot be viewed). The Gensen-buro is a free-flowing open-air bath using "Bihada no Yu" (hot spring for beautiful skin), a weakly alkaline natural hot spring that springs up from 1,000 meters underground
• ​Rooftop Sky Garden and Footbaths​​: A Japanese garden of about 1,000 tsubo spreads out on the rooftop, where visitors can gaze at seasonal flowers and trees while soaking in the footbath in their yukata
• ​Senbon Torii Gates and Mizuarai Bentengu Shrine​​: The Senbon Torii are the torii gates of the mountain path for visiting Mizuarai Bentengu Shrine, at the highest point of the garden. Mizuarai Bentengu enshrines an image of Mizuarai Benten carved by a Buddhist sculptor, and from here you can view the whole garden

History and Highlights

​Solaniwa Onsen​ is a hot spring theme park located inside the Osaka Bay Tower complex, which is directly connected to Bentencho Station by a pedestrian walkway. Inside the facility, which recreates the charming streets of old Osaka, visitors will find natural hot spring baths, bedrock baths, festival games, and more. To allow guests to enjoy Japanese culture and history, visitors spend their time inside dressed in yukata provided by the facility.

In the large communal baths on the 5th floor, guests can soak in "Bihada no Yu" (hot spring for beautiful skin), a weakly alkaline natural hot spring water that springs up from 1,000 meters underground. The spring quality is classified as a simple hot spring. For both men and women, there are nine types of baths—including free-flowing open-air baths sourced directly from the spring, the Niwamiburo overlooking a Japanese garden, and carbonated baths—as well as saunas.

Highlights & Experiences

• ​Niwamiburo and Free-Flowing Spring Baths​​: The Niwamiburo is an infinity bath overlooking a Japanese garden of approximately 3,300 square meters (approx. 1,000 tsubo) and is the most renowned feature of Solaniwa Onsen. The Gensen-buro is an open-air bath filled to the brim with freshly pumped, free-flowing "Bihada no Yu" straight from the source.
• ​Rooftop Sky Garden and Footbaths​​: A Japanese garden of about 3,300 square meters spreads out on the rooftop, where visitors can gaze at seasonal flowers and trees while soaking in the footbaths while wearing yukata. The footbath is large, stretching across the entire shorter side of the garden.
• ​Senbon Torii Gates and Mizuarai Bentengu Shrine​​: Across the garden's large pond, there is a waterfall and a path lined with Senbon Torii (thousands of torii gates). These gates form a mountain path for visiting the Mizuarai Bentengu Shrine located at the highest point of the garden. Mizuarai Bentengu enshrines an image of Mizuarai Benten carved by a Buddhist sculptor, offering a panoramic view of the garden from this spot.

Tips for Visiting

Along the facility's main street, "Benten-dori," is the "Benten Ennichi" festival area lined with stall games such as cork gun shooting, ring toss, and goldfish scooping, which guests can enjoy in their yukata even after bathing. Please note that there are certain hours when the garden cannot be viewed from the Niwamiburo. It takes about 10 minutes by train from Osaka Station, and is located just a short walk from JR and Osaka Metro Bentencho Station via the walkway and exits.