Nationwide × Accommodation With Acidic OnsenRecommended Hotel·Ryokan - 2Page Number

A designer resort designed by the world-renowned architect, the late Kenzo Tange. Its distinctive exterior and arched restaurant create a true resort atmosphere. The views from the upper floors are exceptional. Enjoy local flavors of Zao cuisine and a relaxing getaway with healing time at Zao Onsen.

In the 10th year of the Showa era, the year following Unzen's designation as Japan's first national park, the Unzen Resort Hotel was established for foreign vacationers.

A therapeutic Property at the foot of Mount Yake. With a pH of 1.2 and a source temperature of 98 degrees, it offers Japan's most acidic Onsen directly without any additives. Designed for healing and relaxation, with a nurse always on-site. This Facility focuses on physical and mental health rather than tourism. Breakfast is a buffet, lunch is ordered with meal tickets, and dinner is cafeteria-style to promote health from within. For those wishing to enjoy the Onsen as a tourist attraction, please use the affiliated facility, Shin-Tamagawa Onsen.

"Fufu Hakone" is a small luxury resort where you can enjoy the breathtaking views of the Hakone mountain range. The Facility incorporates the rocky terrain of Gora, Hakone into its design, featuring walls inspired by rock surfaces and stone counters that emphasize strength, while also offering a touch of Japanese softness with swaying flowers and bamboo flower vases. Guests can relax in the stunning public bath overlooking the Hakone mountains or enjoy private open-air hot springs in every Room, each offering two distinct types of spring water.

The Concept of Gensen Ichinoyu Touji Japanese people have long cherished Onsen, a gift of nature, and have benefited from its blessings. Touji refers to staying at an Onsen area for an extended period to rest, recuperate, and heal, seeking the therapeutic effects of the Onsen. In our busy daily lives, take it slow, without hesitation, at your own pace, and enjoy Onsen every day. We have created a Property where long-term stays, like Touji, can become a reality. Stay as if you live here. Wake up in the morning, soak in the Onsen, stroll through the town, and gaze at the mountains. Because it is a free space like your own home, you can stay as you please.

The indoor large cypress bath offers 100% natural flowing sulfur Onsen water. Enjoy the rich benefits of the cloudy hot spring while admiring the seasonal trees. Several public baths are within a 5-minute walk, making it an irresistible spot for Onsen enthusiasts.

Savor Kusatsu’s famed Onsen in the privacy of your Room, undisturbed.A small Accommodation with only four Rooms, each featuring a private open-air bath with free-flowing natural hot spring water.Open the door and you’ll find a bar counter.Your stay begins quietly with a welcome cocktail.Surrender to the waters, then head to dinner wrapped in the aroma of fire.Seasonal Japanese cuisine finished over a wood fire, paired with sake, wine, and cocktails—crafted into an evening to be enjoyed with all five senses.An exceptional time reserved for just eight guests per day.A new kind of stay: “spend the night at a bar and savor the Onsen.”Kusatsu Onsen VAN — a hidden retreat for adults.

One of Japan’s largest log Hotels, nestled in the majestic nature of Hakkoda. Surrounded by the warmth of carefully selected timber—comforting even to the touch—and a refined, relaxing atmosphere, we promise you an exceptional stay. The breathtaking seasonal views from our large windows feel like a work of art framed before your eyes. Fresh spring greenery, crisp summer forests, vibrant autumn foliage, and a shimmering winter wonderland—Hakkoda’s ever-changing scenery will enrich your time here. A gentle natural-wood fragrance fills the Hotel, while our staff’s heartfelt hospitality and the chef’s exquisite cuisine create a warm and luxurious experience. Escape the bustle of the city and spend a special holiday with someone dear—one that will surely become an unforgettable memory.

A long-established Ryokan in the Zao Onsen town with a proud history of over 1,000 years. The retro interior, filled with Taisho-era charm, features tatami flooring throughout the building. Enjoy our private hot spring source, producing an abundant 720 liters per minute, along with carefully crafted dishes made with delicious local ingredients.

"Kimuraya" is a Ryokan that was once operated by the representative's grandmother at Kusatsu Onsen. With the hope of becoming a property loved by guests for a long time and allowing them to enjoy the townscape, onsen, and cuisine of Kusatsu Town, we have inherited the name "Kimuraya." Please enjoy blissful moments in a space encompassing the onsen.

Enjoy the free-flowing acidic hot springs and renowned baths. Dake no Yu features a unique hot spring, with natural spring water near the Adatara Mountain crater having a pH of 2.48. The water becomes milder as it flows through an 8km pipe. The open-air baths, designed to enjoy the Adatara sky, are made of hinoki wood, stone, and jar baths. The indoor baths with saunas offer a spacious and open atmosphere. Dinner is served as a natural buffet. Rice cooked in a traditional pot is exceptionally delicious.

ASNOVA RESORT / FOLQ HAKONE GORA A luxurious Vacation Rental to enjoy with your beloved family, friends, and pets. Introducing the third installment of the ASNOVA RESORT series. From the moment you step inside, a space filled with happiness unfolds before you. Experience an extraordinary journey where you can relax as if it were your everyday life. Here, time flows gently in a place that feels just like home. Enjoy facilities such as a private sauna with 100% natural milky-white Onsen water, an indoor heated pool, and a private dog run.Cherish precious moments with your loved ones and your beloved pets as time slows down for an unforgettable stay.

Situated on the highlands of Kusatsu Onsen, this property offers 23 diverse types of baths and two hot spring sources. Guests can also enjoy bench-style stone saunas, two types of dry and wet saunas, and three private open-air baths free of charge. Experience the ideal hot spring retreat.

Takayu Onsen Kagetsu Highland Hotel is an onsen property surrounded by the magnificent nature of Fukushima Prefecture. The views from the guest rooms are particularly attractive, with rooms on the south castle side offering views of Fukushima City, and rooms on the south mountain side offering views of the seasonal Azuma Kofuji mountain range. From the tatami mat rooms, you can enjoy the beautiful autumn leaves, often referred to as the "Carpet of the Gods."The onsen itself has a history of about 400 years, and its benefits have healed the minds and bodies of visitors from all over the whole country. The view from the open-air bath, known as the "Sky Open-Air Bath," is breathtaking, allowing you to experience the natural beauty of each season with all your senses, from the fresh greenery of spring, the blue skies of summer, the autumn leaves, to the snowy landscapes of winter.In terms of dining, Japanese cuisine that emphasizes the changes of the seasons is offered, featuring local Fukushima ingredients and carefully selected ingredients from across the whole country, creating dishes that are like stories crafted by the chef. Additionally, you can enjoy local Fukushima sake, tasting renowned brands such as "Sharaku" and "Hiroki" alongside Fukushima beef.Children are welcome to stay, with arrangements made for the whole family to enjoy. Small dogs are also allowed, making it possible to travel with your pet.Access is convenient by car, train, or bus, and a complimentary shuttle service is available for guests, ensuring a worry-free visit. With the changing seasons, comfortable onsen, gourmet food, and warm hospitality, Takayu Onsen Kagetsu Highland Hotel is an ideal property for spending special moments.

At Ryokan Ikuseiya, in addition to separate baths for men and women, each room features a private onsen. You can enjoy the onsen at any time without time restrictions. The large communal bath uses Shirahata no Yu, one of Kusatsu's premier onsens, with baths and changing rooms crafted from hinoki wood to maximize the onsen's benefits. Dinner is served in private rooms, with all dishes presented at once, allowing you to dine comfortably without multiple room entries.

Kusatsu Hotel was established during the Taisho era as a Western-style "Hotel." During the Meiji period, Dr. Bertz, a German medical scientist, praised Kusatsu Onsen, attracting many foreign visitors to Kusatsu. Later, around Showa 27, the hotel was renovated into the current traditional Japanese-style Ryokan, but the name "Hotel" remained. The charm and spirit of hospitality from the Taisho era have been preserved to this day.

A small Accommodation in Dake Onsen with a charming Japanese ambiance reminiscent of the Taisho era. Our natural Onsen is 100% free-flowing from the source, piped in from the mountains at an elevation of 1,500 meters, and features a gentle simple acidic spring. Housed in an early Showa-era wooden building, the property offers just eight thoughtfully appointed rooms. Enjoy creative kaiseki cuisine made with seasonal ingredients, paired with renowned local sake from Fukushima. Relax and savor a quiet, soothing stay.

—Over 160 years of history: 35 types of baths across 1,500 tsubo, with five spring qualities. More than 160 years ago, founder Kinzo Takimoto opened Noboribetsu Onsen to heal his wife’s skin condition. The waters, passed down through generations since the Edo period, continue to soothe all who come in search of their healing warmth. Guests are welcomed by five spring qualities: sulfur spring, sodium bicarbonate spring, sodium chloride spring, Glauber’s salt (sodium sulfate) spring, and acidic ferrous sulfate (green vitriol) spring. Japan has ten recognized types of hot-spring water—half of them can be enjoyed right here at our inn alone. A bath-hopping journey is a journey of healing. For a restorative escape to melt away everyday fatigue, let us be your companion.

[Michelin Guide Fukuoka, Saga, Nagasaki 2019 Special Edition: Ryokan 5 Stars+ (Red), Cuisine 1 Star] [2024-2025 Consecutive Years Michelin Key Award Winner] Experience a serene moment as you listen to the gentle murmur of clear streams and the whispers of the wind, embracing the changing seasons. Unzen Onsen, renowned since ancient times as a therapeutic hot spring, is a sulfur spring known for its high sterilizing properties, promoting beautiful skin and improved blood circulation—earning it the name "Beauty Hot Spring." Enjoy seasonal delicacies served on exquisite tableware that harmonizes with luxurious furnishings, accompanied by heartfelt hospitality. Surrounded by majestic nature, escape from daily life and indulge in a tranquil flow of time for both body and mind.

Takayu Onsen in Fukushima Prefecture, counted among the three famous hot springs of Oshu. Ryokan Tamagoyu boasts 100% natural hot spring water flowing continuously for 400 years. Enjoy seven hot springs, including the thatched-roof bathhouse from the Meiji era and the open-air bath that turns milky white, along with the changing seasons.