Hirugami Onsen · Tenryukyo Onsen × Train-Accessible Onsen AccommodationRecommended Hotel·Ryokan

Surrounded by the Tenryu-Okumikawa Quasi-National Park, this Accommodation stands on a promontory overlooking the Tenryukyo Gorge, with the Tenryu River below shifting colors from moment to moment. Embraced by breathtaking natural beauty, accompanied by birdsong and the resonant sound of flowing water, your mind gently melts into nature. Dining features creative Japanese cuisine—an enchanting story brought to life through Chinese poetry inspired by the gorge’s extraordinary rock formations. Soak in an Onsen as smooth as a beauty serum infused with nature, and feel both body and mind renewed. A journey that awakens your senses and reconnects you with your true self. A hidden retreat for adults—one you may want to keep secret.

An open-air bath with a starry sky view and the smooth Hirugami Onsen are highly praised at this tranquil property. Enjoy the forest open-air bath, skin-beautifying hot springs, and seasonal mountain village cuisine in the Satoyama of Achi.

Since ancient times, the tranquil village of Sonohara has warmly welcomed travelers. The Amikake Mountain behind it reflects the elegance and poetic beauty of the four seasons like a natural painting. Passing through the main gate, Ibishamon, along the clear stream, a garden rich in emotion with Sukiya-style architecture and colors that change beautifully with the seasons unfolds. The cuisine is flavorful kaiseki dishes. The onsen is a natural hot spring known for its skin-beautifying properties.

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.

An accommodation with the concept of "Health and Healing." The hot spring water at Hirugami Onsen boasts a pH of 9.7 and high salinity, known as a beauty-enhancing onsen. The large public bath features the only sit-down bath in Hirugami Onsen, allowing you to enjoy the onsen comfortably for as long as you like. The renovated guest rooms offer luxurious spaces, including rooms with open-air baths and newly introduced health-focused rooms produced by Phiten, favored by top athletes. Meals feature Kaiseki cuisine centered around Shinshu Premium Beef and colorful seasonal local ingredients. Enjoy a blissful time that satisfies your body, mind, and appetite.

Keigetsu Matsubayashi, a master of Sansui Kachoga (landscape and bird-and-flower paintings), lived through the Meiji, Taisho, and Showa eras. Renowned for his artistic talent, he left behind numerous works. He also composed Chinese poetry in five-character verses inspired by the natural beauty of Ina Valley. The name "Nichichoan Keigetsu" originates from "Nichichoan," which Keigetsu himself named after this poetry for the retreat of a previous owner.

Our private Onsen baths, including both open-air and indoor options, offer a spacious setting to enjoy the high-quality waters of Hirugami Onsen. Relax in our newly opened lobby & lounge or savor dishes made with abundant Shinshu ingredients. Escape the hustle and bustle, and rejuvenate your mind and body amidst the beautiful seasonal nature for a "blossoming moment like a flower."

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.

You can enjoy a relaxing time in a space themed around seasonal fairy tales. Delight in the tranquil interior decorations that evoke a sense of nostalgia. From guest rooms filled with the scent of rush grass, you can admire the beautiful seasonal views. The Onsen, with its velvety waters, leaves your skin smooth as if wrapped in a veil, and the open-air bath offers stunning stargazing opportunities. Experience the seasons through delightful dishes made with ingredients from Shinshu.

The property boasts the beautifying waters of the alkaline simple spring "Fudou Onsen 100%." Enjoy seasonal cuisine with Irori Kaiseki or the autumn-exclusive Matsutake Kaiseki. Relax in Japanese-style rooms overlooking abundant nature. At Star Village Achi, an essential part of Achi-mura tourism, you can enjoy the healing beauty of autumn landscapes with starry skies and sea clouds. In winter, admire the sparkling starry skies and frost-covered trees, and enjoy open-air onsen baths with snow views.

Inspired by the Taisho Roman concept, "Hirugami no Sumika Genchiku" blends tradition and modernity. Stepping into the property, you enter a different world. Everything you see evokes nostalgia and excitement. Guided to your room, you relax in the spacious area, listening to the sound of water from somewhere, experiencing moments of bliss unique to this place.

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.