Around Oku-shima Lake × Stays Popular For Snow-View BathsHot springRecommended Hotel·Ryokan for family trips

[Awarded TripAdvisor Japan’s Top 25 Ryokan for Five Consecutive Years] Step through the small gate lit by amber lanterns and you’ll be embraced by the warmth of beautifully polished wood. Surrender to a gentle sense of nostalgia, unwind at your own pace, and let your mind be set free—Shima Onsen Kaigen, a serene hidden retreat in the quiet forests of Shima.

An accommodation close to the sky, located in the highest area and innermost part of Shima Onsen within Joshin'etsu National Park. Enjoy the pure air, chirping birds, rich nature, and high-quality onsen water from four natural sources (all rooms equipped with private onsen baths), offering a rejuvenating experience for both body and mind.

Since its establishment in Genroku 7 (1694), "Sekizenkan" has welcomed guests for over 300 years, with a constant flow of visitors seeking Onsen therapy. The Property features three distinct buildings: the "Main Building," known as the oldest Onsen inn architecture in Japan, where the culture of Onsen therapy still thrives; the "Sansou," designated as a Registered Tangible Cultural Property of Japan for its excellent design and architectural techniques in the Momoyama style; and the "Kashoutei," located at the highest point in Shima Onsen, surrounded by the tranquility of ancient pine trees. At Sansou and Kashoutei, guests can savor exquisite kaiseki cuisine prepared by the head chef. Enjoy a variety of Onsen experiences, including the retro-modern "Genroku no Yu" and the seasonal "Mori no Yu."

Opened in November 2024, "Kanouya Shima Onsen" offers all rooms with private open-air Onsen baths featuring natural hot spring water. Situated along the clear Shimagawa River, you can enjoy breathtaking views of Shima's nature through large windows and from the baths. Escape the hustle and bustle of the city and indulge in a relaxing time immersed in nature.

We cherish a quietly flowing sense of time, focusing on stays for two, such as couples and partners. From the guest rooms and baths, you can hear the gentle murmur of the river and relax away from everyday life. Meals are prepared entirely by hand, featuring ingredients mainly from Gunma Prefecture. There is no large public bath; instead, you may use our three private reservable baths free of charge. Each bath is supplied with “Gomusō-no-Yu,” the original hot spring source of Shima Onsen.

This is a modern Ryokan at Shima Onsen, popular among women. It features a large public bath and three private open-air baths that can be used multiple times for free. Check-out is at 12 PM, making it ideal for those who wish to relax in the morning.

Along the Shima River, enjoy 100% natural Onsen with three abundant private sources in various bathing facilities. Savor the Satoyama Kaiseki cuisine, featuring the bountiful mountain and river delicacies of Gunma.

Shima Onsen has long flourished as a therapeutic hot-spring retreat.Its mineral-rich Onsen water helps give your skin firmness, radiance, and clarity.The gentle murmur of the clear Shima River offers a peaceful, relaxing time.

Established in the 7th year of Genroku. This is Japan's oldest property architecture designated as an important cultural property, also famous as the model for the movie "Spirited Away." Enjoy four diverse onsen, including the retro-modern "Genroku Onsen" and the "Mori Onsen" that reflects the changing seasons.

A hot spring hotel nestled in a serene 330,000-square-meter retreat surrounded by clear streams. Enjoy the renowned skin-beautifying hot springs with rooms featuring open-air baths, private baths, and access to sister properties for a delightful hot spring hopping experience! Dinner includes a buffet of over 50 Japanese, Western, and Chinese dishes. Savor freshly grilled beef steak and tempura prepared live at the kitchen station.

Set beside the scenic Shima River Gorge, with views of Fusen-kyo Gorge—also known for its brilliant autumn foliage—ShimaBlue is a secluded retreat in the mountains. With the soothing sounds of the Shima River nearby, this is Shima Onsen’s first private cottage property featuring open-air Onsen baths, offering seven distinctive spaces to relax and enjoy the renowned waters of Shima Onsen.The seven guest cottages each feature their own uniquely designed private open-air Onsen bath. Lined up along the river, they offer an airy terrace where the gentle murmur of flowing water creates a calming atmosphere. Dining includes our signature barbecue showcasing carefully selected ingredients from Gunma Prefecture, along with a wide selection of local craft beer, wine, and more. Surrounded by the beautiful nature of the Shima River—beloved as “Shima Blue”—enjoy an unforgettable villa-style stay filled with scenery, cuisine, and local blessings.

A wooden Property located on a hill in the onsen town. The interior is clean and full of charm. It features 4 Japanese-style rooms and 2 rooms with open-air baths and a wood cabin-style bath. Guests can enjoy various baths, including a panoramic bath, a storehouse-style bath, and two private open-air baths. The "Hatago Gozen," a meal highlighting local flavors, is popular among guests of all ages.

At this accommodation nestled in the land of Shima, you can experience the warmth of traditional onsen and enjoy the spiritual waters of Shima Onsen. Rooms range from 6 to 10 tatami mats, with spacious two-room suites, Japanese-Western style rooms, and highly recommended rooms with private open-air baths. Relax in uniquely designed rooms at your leisure. A large public bath is also available to soothe your travel fatigue. Enjoy a tranquil bathing experience in a serene atmosphere.

We take pride in our Onsen, a variety of baths, and handmade cuisine crafted without relying on pre-made products (limited to a set number per day). Guests can enjoy five private baths at no additional charge. All baths feature free-flowing Onsen water. You are welcome to use the hinoki wood family bath or the stone family bath freely. The natural Onsen water is colorless, odorless, and sourced directly from our private spring on-site, flowing continuously (free-flowing source). Notably, Gennoyu and Koshiburo Ichinoyu are supplied directly through natural gravity as they are located lower than the spring source. Please note that as this is a wooden building, there is no elevator; guests will need to use stairs. Meals are served in the dining area. For stays of three nights or more, meals from the third night onward will repeat the menu from the first and second nights. We regret that we cannot accommodate changes to meal content (including allergies or preferences). All rooms and indoor areas are non-smoking, including electronic cigarettes.