Hirugami Onsen · Tenryukyo Onsen × Stays Popular For SaunaRecommended Hotel·Ryokan

An Onsen property located in a village recognized by the Ministry of the Environment as the best place in Japan to view stars. From the open-air bath, you can enjoy a sky full of stars. Meals include two delightful options: Irori cuisine using local ingredients from Minami Shinshu and Kaiseki cuisine.

The oldest Ryokan in Hirugami Onsen, nestled in the rich nature of Southern Shinshu. The popular cave bath features the first-ever hot spring source of Hirugami Onsen, offering an abundant flow and a variety of baths worthy of its name as the origin. The pH 9.7 water is also known as Shingen's hidden onsen and a beauty-enhancing bath, making it irresistible to bathe multiple times during your stay. In spring, vibrant peach blossoms bloom in abundance, and at night, Japan's best starry sky certified by the Ministry of Environment shines brightly. In 2023, some rooms were renovated to offer various Japanese-Western styles for your comfort. Enjoy relaxing moments with the sound of a flowing river while savoring seasonal dishes made with fresh ingredients and soaking in our spacious onsen facilities.

A Property offering an Onsen known as "Bijin no Yu" (Beauty's Hot Spring). The water is gentle on the skin, with a smooth and silky texture, particularly appreciated by women. At the footbath Onsen, you can relax while enjoying the murmuring of the Achigawa River and the surrounding mountain views. The newly renovated guest rooms feature a sophisticated design by a designer and are wheelchair accessible for comfortable use. Some rooms come with private open-air baths, allowing you to enjoy a private and relaxing time. In the garden open-air bath, you can experience seven types of Onsen within a traditional Japanese garden setting. Meals are served buffet-style with over 60 varieties of Japanese, Western, and Chinese dishes, including plenty of options made with locally sourced vegetables.

Nestled in the Hirugami Onsen area of Achi Village, Minami-Shinshu—often praised as home to Japan’s finest starry skies—Oyado Sansui is an Accommodation where you can truly unwind. Enjoy the “beauty-skin bath” in an alkaline sulfur spring known for its silky feel, and savor seasonal cuisine for a luxurious moment of indulgence. A lounge with complimentary drinks is available, and from the guest rooms and corridors you can look out over “Suiten Tenjo Garden,” created by a Kyoto gardener. Let your spirit be refreshed by breathtaking scenery of waterfalls, stone gardens, and flowers—why not spend a blissful holiday here?

Choose between two distinct accommodation styles: Onsen Accommodation or Glamping, and enjoy a relaxing time away from the hustle and bustle of daily life. In the evening, savor meals prepared with an abundance of local ingredients. Our Kaiseki cuisine, served in a traditional irori setting, features carefully selected ingredients for you to enjoy. We also offer a dining venue where you can dine with your beloved dog, allowing you to spend quality time together throughout your stay. Our private sauna (available by reservation) offers a serene experience under the starry sky. Additionally, our onsen is available all night long for you to bathe at your convenience.