Soothing Natural Hot Springs to Restore Your Soul
Nestled in Matsumoto Azumi, Keiryuso Shiorie offers the gentle, healing waters of Sawando Onsen, deeply nurtured by the Northern Japan Alps. Our mineral-rich waters are perfect for soothing your muscles after a day of trekking in Kamikochi, exploring Norikura Highlands, or enjoying winter sports. Enjoy our unique hot spring facilities designed for your ultimate relaxation.
Free for Guests: Discover Our Unique "Private Cave Open-Air Bath"
We feature spacious gender-separated indoor public baths crafted with natural rock (a circulation and filtration system is used for hygiene management).
Crucially, all of our hot spring facilities are 【exclusively for staying guests】. Since we do not accept day-trip bathers, our 8-room hidden ryokan maintains a quiet, uncrowded, and serene atmosphere at all times. Many of our guests happily note that they rarely run into others, allowing for a deeply relaxing and private soak even in the public baths.
Remarkably, during the night 【from 11:00 PM to 5:00 AM】, these large rock baths switch to a private-use system. This allows you to simply lock the door and enjoy a massive thermal bath completely to yourself. Escape the crowds and savor a peaceful soak in total comfort.
Free for Guests: "Tatami-Floor Indoor Bath" with a Fragrant Hinoki Tub
Our "Tatami-Floor Indoor Bath" offers a deeply relaxing private spring experience featuring a fragrant Hinoki (Japanese cypress) wood tub and a uniquely traditional atmosphere.
The washing area is thoughtfully lined with specialized Tatami mats that are water-resistant, completely slip-proof, and never get cold. This child-friendly and senior-friendly design ensures maximum safety and comfort. By opening the large windows, you can let the refreshing mountain breeze in and transform the space into a luxurious semi-open-air bath.
[How to Use (Completely Free)]
Exclusive for our staying guests, this bath can be enjoyed completely free of charge. The system switches depending on the time of day:
・From Check-in to 11:00 PM / From 5:45 AM to Check-out:
【Reservation Required (45 mins per session)】Please select your preferred time slot upon check-in.
・During the night (11:00 PM to 5:45 AM):
【No Reservation Needed】Simply lock the door and use it as many times as available.
Ultimate Luxury: "100% Natural Free-Flowing Onsen" in Your Private Room (1st-Floor Rooms)
For the ultimate private getaway, our 1st-floor guest rooms feature their own private open-air hot spring baths. The water in these in-room baths is 【100% natural and free-flowing】 straight from the source. You can exclusively enjoy the fresh, pure benefits of Sawando Onsen 24 hours a day, whenever and as many times as you desire.
Soak in your private thermal bath while gazing at the garden greenery and the clear mountain sky in complete serenity. Experience the height of Japanese hospitality and total seclusion.
(*Please note that our 2nd-floor rooms come equipped with a cozy "Private Foot-Bath Terrace" instead).
※To protect the environment, soap cannot be used.
2nd Floor (Limited to 2 Rooms): Unwind on Your "Private Foot-Bath Terrace"
Among our four guest rooms on the 2nd floor, two exclusive rooms come equipped with a private "Foot-Bath (Ashiyu) Terrace," allowing you to soak your feet and warm your body in total seclusion.
Sit back in the terrace chairs, breathe in the crisp mountain air of Matsumoto Azumi, and let the healing waters of Sawando Onsen soothe your fatigue. It is the perfect spot for intimate conversations or a quiet moment of reflection.
The private foot bath is ideal for those who want to enjoy the benefits of a hot spring at their own pace, whether after a long bath or while reading a book under the stars. Experience a unique, deeply relaxing stay that combines outdoor serenity with indoor comfort.
(*Please note that our 1st-floor rooms feature a 100% natural free-flowing "Private Open-Air Bath" instead).
