Spectacular Minato Mirai views and golden natural hot spring water. Experience the ultimate totonou in the bay area
Kanagawa Yokohama City
RAKU SPA BAY Yokohama is a large bath facility in Kanagawa Ward, Yokohama City, Kanagawa Prefecture, which inherited the former INSPA Yokohama and reopened after renovation. The "golden natural hot spring" that wells up from 1,500m underground is a highly saline spring rich in minerals, known for its excellent warming and moisturizing effects and affectionately called the "hot water of heat." The sauna is a Finnish-style sauna with automatic löyly every 30 minutes, with powerful heat enveloping the entire body. A highlight is the view from the open-air area: taking in the nightscape of Minato Mirai and Yokohama Port while enjoying outdoor air bathing is a luxurious moment that makes you forget the hustle and bustle of the city. With 10,000 manga volumes and rock baths as well, it is an adult resort space where you can spend the whole day comfortably.
TypeNatural Hot Spring
A sodium-chloride strong saline hot spring derived from fossil water, flowing from 1,500m underground strata. As its name suggests, the golden-colored water coats the skin with salt, and after bathing your body warms from the core and stays warm for longer. In the open-air bath overlooking the spectacular Minato Mirai view, you can fully enjoy this rich natural blessing.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity15people
A full-fledged Finnish-style sauna room. The automatic löyly performed every 30 minutes raises the humidity inside as hot steam rises from the sauna stones, quickly promoting perspiration. You can also catch glimpses of the Yokohama scenery through the windows, and enjoy comfortable heat in an open, expansive space.
Water QualityTap Water
Capacity4people
A crisp, cold cold plunge bath located right next to the sauna room. It instantly tightens up your body after sauna use and delivers a refreshing sense of relief. The clean tub and the smooth flow leading on to outdoor air bathing in the open-air area are also appealing. It supports the perfect cooldown before you feel the breeze of the bay area.
Closed Days: None
〒221-0054 15-2 Yamauchi-cho, Kanagawa Ward, Yokohama City, Kanagawa Prefecture
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more
Spectacular Minato Mirai views and golden natural hot spring water. Experience the ultimate totonou in the bay area
Kanagawa Yokohama City
RAKU SPA BAY Yokohama is a large bath facility in Kanagawa Ward, Yokohama City, Kanagawa Prefecture, which inherited the former INSPA Yokohama and reopened after renovation. The "golden natural hot spring" that wells up from 1,500m underground is a highly saline spring rich in minerals, known for its excellent warming and moisturizing effects and affectionately called the "hot water of heat." The sauna is a Finnish-style sauna with automatic löyly every 30 minutes, with powerful heat enveloping the entire body. A highlight is the view from the open-air area: taking in the nightscape of Minato Mirai and Yokohama Port while enjoying outdoor air bathing is a luxurious moment that makes you forget the hustle and bustle of the city. With 10,000 manga volumes and rock baths as well, it is an adult resort space where you can spend the whole day comfortably.
TypeNatural Hot Spring
A sodium-chloride strong saline hot spring derived from fossil water, flowing from 1,500m underground strata. As its name suggests, the golden-colored water coats the skin with salt, and after bathing your body warms from the core and stays warm for longer. In the open-air bath overlooking the spectacular Minato Mirai view, you can fully enjoy this rich natural blessing.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity15people
A full-fledged Finnish-style sauna room. The automatic löyly performed every 30 minutes raises the humidity inside as hot steam rises from the sauna stones, quickly promoting perspiration. You can also catch glimpses of the Yokohama scenery through the windows, and enjoy comfortable heat in an open, expansive space.
Water QualityTap Water
Capacity4people
A crisp, cold cold plunge bath located right next to the sauna room. It instantly tightens up your body after sauna use and delivers a refreshing sense of relief. The clean tub and the smooth flow leading on to outdoor air bathing in the open-air area are also appealing. It supports the perfect cooldown before you feel the breeze of the bay area.
Closed Days: None
〒221-0054 15-2 Yamauchi-cho, Kanagawa Ward, Yokohama City, Kanagawa Prefecture
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more