Enjoy three types of baths
at Jade green Hot Spring
(Hisuiiro Onsen)
At one of very few domestic natural
hot spring, you may enjoy three different types of baths.
"Ichi no Yubune" are ayailable in both the men's and women's baths, featuring the fragrance of Japanese cypress and profoundly graceful sense of refinement. The outdoor "Ni no Yubune" and "San no Yubune" are divided between the men's and women's sides, and provide varied enjoyment from season to season.
The large public bath, widely regarded as one of the best in the area, is also popular for day-use visitors! In front of you is a beautiful valley that changes with the seasons.
We also have a sauna and massage chairs available (the sauna is open from 16:00-22:00).
Although the lights will be dimmed after 22:00, the facilities are still available for use late at night and early in the morning.
Enjoy a relaxing onsen experience without staying overnight.
The indoor bath features Simple Alkaline Spring, while the open-air bath offers a fragrant Sulfur Spring — two different spring types to soothe both body and mind.
Towels are provided, so no need to bring anything. Perfect for a peaceful break during your day.
Summer availability varies by date. Please contact us by phone for details.
You can also check the latest information on our official website.
By blending two sources of hot water, one hot and one warm, we adjust the temperature to the perfect level, creating a simple hot spring with no added water or heating. The water is colorless and transparent, with a smooth, lotion-like texture, offering a soft, gentle experience that feels as though it soaks into the skin.
Our onsen is known for its rare "yubana" (bath flowers) that float on the surface, and the spring water turns a milky, pale green color. It is a completely natural 100% hot spring.
Type of Spring: Simple Thermal Spring
Benefits: Rheumatoid arthritis, lower back pain, neuralgia, bruises, sprains, sensitivity to cold, stomach discomfort, mild high blood pressure, diabetes, fatigue recovery, general health promotion, autonomic nervous system imbalance, insomnia, and more.
Designed to evoke the image of a European mountain resort, offering a relaxing and immersive experience.
A rustic outdoor bath with a view of the Shiga landscape, providing a natural and refreshing atmosphere. (Closed during the winter season.)
It is a natural hot spring with flowing spring water directly from the source. Its color may vary to milky white on certain days, and the amount of mineral deposits may increase, creating a change in appearance. Please note that the open-air bath will be unavailable due to maintenance.
Dates & Hours: 20 December 2025 – 31 March 2026, daily 15:00–20:00.
Open-air bath generally available on weekends and holidays; closed 25 Dec 25 – 4 Jan 26. May close in severe weather. Some dates may be unavailable for group bookings.
Access: The road from Hoppo Onsen Bus Stop to Swiss Inn is steep; 4WD with snow tires required in winter. Others must use our shuttle (15:00–20:00). Call on arrival: +81-269-34-3456.
Note: Vehicles not meeting requirements may incur towing fees (approx. 30,000+ JPY).