Kanagawa Kawasaki City
A premium hot spring facility featuring free-flowing natural spring water and one of the largest bedrock bath areas in the Kanto region
"Miyamaedaira Gensen Yukemuri no Sho" is a day-use hot spring facility in Kawasaki, Kanagawa Prefecture. Its dark brown natural spring water, renowned as a beauty-enhancing bath, can be enjoyed in a variety of baths, including an open-air rock bath with free-flowing spring water and a carbonated amber bath that uses technology also applied in the medical field. After soaking in a powerful authentic auto-löyly sauna, cool down refreshingly in the cold plunge bath. It also features six types of bedrock baths, among the largest in the Kanto region, a relaxation lounge lined with reclining chairs with TVs, and a dining area with a warm Japanese atmosphere, allowing you to spend a luxurious day of healing.

This large bath lets you luxuriate in dark brown natural spring water known as a beauty-enhancing bath, with options including an open-air rock bath with free-flowing spring water and a carbonated amber bath where carbon dioxide is dissolved into the hot spring water. The smooth water gently envelops the skin, while the saline veil warms you all the way to the core. The bath area also offers a women-only Uruoi Bihada-yu, where ultrafine nanomist surrounds the body, as well as a variety of other baths such as tsubo baths where you can gaze up at the sky, allowing you to fully enjoy a tranquil bathing experience.

A full-fledged sauna where auto-löyly is performed at regular intervals, filling the room with a pleasant wave of heat. It thoroughly warms the entire body and encourages a deep sweat, helping to expel waste products and bringing a profound sense of relaxation. In the quiet space, you can face the heat at your own pace and enjoy a blissful moment of release from everyday fatigue.

A women-only steam salt sauna with a low temperature that is gentle on the body and softly stimulates the parasympathetic nervous system. Applying salt to the body enhances the warming effect and encourages a slow, steady sweat. Moist steam envelops the skin, washing away dirt from the pores and waste products. In this mild, comfortable space with no stifling heat, both body and mind are led into a deeply relaxed state.

A cold plunge bath that sharply tightens a body well warmed by the sauna. It closes the pores and leaves the skin feeling firm while wrapping the whole body in a refreshing cool sensation. The contrast between the warmed body and the cold water feels wonderful and perfectly prepares you for totonou.

A bedrock bath area with one of the largest spaces in the Kanto region, where you can enjoy yourself with no time limit. Using a dedicated outfit, you can move through six different types of environments, including rooms with various minerals such as germanium and tourmaline, a room made of natural rock salt, and a space filled with nanomist that envelops the entire body. A cooling room after sweating is also available, letting you enjoy beauty, health, and the ultimate relaxation all day long.
Irregular Holidays
Guests with tattoos or body art of any size, including stickers, are not permitted.
Kanagawa
Sky SPA overlooking Yokohama
Kanagawa
Kawasaki sanctuary boasting an ultra-concentrated natural hot spring and a submersible amber cold plunge bath
Kanagawa
A Yokohama sauna that helps you totonou with a waterwheel-style sauna stove and Chinese tea löyly
JAPAN'S FINEST ONSEN & SAUNA
The Finest Onsen & Sauna in Japan
57 SELECTIONS
Most of what we surveyed never even made it onto this site. This book is a further cut from what did. Our editor bathed in every onsen and sauna in it, and wrote only what they confirmed on the ground.