Shiga Kusatsu City
Refresh yourself in style with a skin-beautifying natural hot spring and a barrel sauna where self löyly is possible
"Kusatsu Yumoto Suishun" is a day-use hot spring facility in Kusatsu City, Shiga Prefecture. Its natural chloride spring, "Omi Kusatsu Bijin no Yu," which bubbles up from strata beneath Lake Biwa, has a soft feel that gently envelops the whole body and soothes tired muscles from the core. The sauna facilities are exceptionally well equipped, featuring a full-fledged sauna with automatic löyly, as well as a variety of options such as a barrel sauna that soothes you with the scent of wood. Once heated up, you can cool off in the open-air cold plunge bath or the extra-deep cold plunge bath, which feels like standing in cold water. The stone-bed bathing area, where music and lighting create a fun atmosphere, along with the restaurant, make this a blissful space where you can lose track of time and relax all day long.

A natural hot spring with chloride spring water sourced from groundwater stored in the strata beneath Lake Biwa. Rich in sodium bicarbonate, it is characterized by a smooth bathing feel that gently polishes the skin's surface. In the spacious open-air rock bath, you can feel the breeze outside while warming your body from the core and enjoy a supreme bathing experience that seems to melt away your daily fatigue.

A full-fledged sauna wrapped in the powerful heat of far-infrared rays. Regular automatic löyly fills the sauna room with high-temperature steam, causing the perceived temperature to rise all at once. Löyly service is also offered by staff who wave large fans to send waves of hot air, letting you fully enjoy a refreshing sweating experience. In the spacious room, you can take your time facing the heat and experience deep refreshment.

A barrel-style sauna that originated in Finland, built from timber into a cask shape. Its distinctive cylindrical design helps steam circulate evenly throughout the sauna room. Self löyly is available, so you can control the humidity and heat to suit your preference. The quiet space is filled with the pleasant scent of wood, creating an immersive feeling of being in nature and a supreme relaxation experience.

A steam sauna that uses kampo herbs made by blending several medicinal ingredients such as cinnamon bark and ginger, along with mineral-rich salt. A special attraction featuring bursts of large amounts of steam is held regularly, filling the room with the rich aroma of herbs. By rubbing salt into your body, you can work up a refreshing sweat while warming up deeply.

A sauna available exclusively in the men's bathing area, where you can face yourself in silence. Calm lighting and a quiet environment are maintained, allowing you to immerse yourself in a deep world of mindfulness. Self löyly is available, and by pressing a switch, waves of heat circulate through the room, with the pleasant warmth and stillness guiding you to the ultimate totonou.

A sauna space available exclusively in the women's bathing area, featuring beautiful lighting effects. Wrapped in three soothing lights that change from red to yellow to green, you can spend time much like color therapy, matching your mood for the day. Regular automatic löyly keeps the room at a comfortable humidity, allowing you to work up a gentle, pleasant sweat.

An open, spacious cold plunge bath installed in the open-air area right next to the sauna zone. With ample depth and a generous layout, it can thoroughly cool down your overheated body. After getting out of the bath, you can smoothly transition to an outdoor air bath while feeling the pleasant breeze.

A cold plunge bath installed in the indoor bathing area of the large public bath. The flow from the sauna room is convenient, allowing you to quickly cool down your body immediately after sweating. Its coldness tightens the whole body, helping prevent chilling while giving you a pleasantly refreshing sensation.

A cold plunge bath in the men's bathing area that boasts astonishing depth. As you descend using the ladder, you can immerse yourself up to the shoulders in cold water while standing upright. It offers a dynamic and refreshing cooling experience that rapidly cools down your entire body after it has been heated to the limit in the sauna.

A spacious thermal spa area equipped with multiple stone-bed rooms using a variety of minerals. You can move together as men and women in special clothing through spaces with different themes, such as a room offering a löyly experience enhanced by music and lighting, and a room covered with black germanium and rock salt. After warming your body from the core, cool down all at once in the cold-air room. The dedicated lounge is equipped with an enormous collection of comics and a coworking space, so you can enjoy detoxing comfortably all day long.
Open Year-Round
Shiga
Natural hot springs flowing directly from the source and spectacular views of Lake Biwa
Shiga
Shiga's pilgrimage site for authentic saunas and two on-site natural springs with Lake Biwa views
Shiga
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.