Nationwide × Accommodation With Acidic OnsenRecommended Hotel·Ryokan

Kusatsu Onsen Boun is a Ryokan boasting flowing Onsen baths and a rhododendron garden. It features six baths sourced from two hot springs. Enjoy the full experience of Kusatsu Onsen. Rooms with open-air baths using the Nishinokawara spring are also available. Located just a 3-minute walk from Yubatake, the center of the Onsen town. Relax and enjoy the serene time of Onsen indulgence loved by many literary figures.

A highland Property nestled in the serene forests and by the lakeside of Zao Onsen. The "Hanare-yu Hyakuhappo" offers a unique Zao Onsen experience with its sulfuric aroma and milky white waters welcoming you with a warm "welcome." Enjoy the open-air bath, indoor bath, and foot bath while taking in the breathtaking views of the Zao mountain range and Ryuzan. Savor exquisite dishes prepared to perfection using seasonal ingredients, including Yamagata beef, offering a feast for both the eyes and the palate. The renovated Rooms, such as the Junior Suite and Japanese-style Deluxe Twin, provide a luxurious space to unwind and rejuvenate from your travels. Surrounded by the nature of Zao, indulge in a refined and elegant moment.

A Resort Hotel named Lavista (meaning "view") has opened on a hill slightly away from the central area of Kusatsu Onsen. This is the first facility in Kusatsu Onsen to feature a top-floor panoramic Onsen bath and four unique private Onsen baths, all free of charge, where you can enjoy two types of hot springs, including the famous Yubatake source. Additionally, all guest rooms are equipped with private open-air Onsen baths, allowing you to indulge in the "Yukawa no Yu" spring, different from the panoramic bath. On the top floor, the panoramic lounge offers inclusive services such as draft beer after a bath, an amenity buffet that delights women, and light snacks, tailored to different times of the day from check-in to check-out. For dinner, savor a carefully selected Western-style course meal.

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.

[2023 Good Design Award Winner] A meticulously designed space to fully enjoy the seasonal landscapes. Experience the benefits of Unzen Onsen with our natural hot spring baths featuring a continuous flow directly from the source. Celebrating 93 years of history, the newly opened "Unzen Miyazaki Ryokan" offers a unique stay that immerses you in the seasons of the national park, providing relaxation and a sensory experience. Unzen's seasonal scenery blends harmoniously with nature, and the location has been carefully chosen to allow guests to enjoy these views from anywhere within the Ryokan. For dinner, indulge in creative cuisine featuring local ingredients from Unzen, Nagasaki, and Kyushu. At "Miyama Dining," you can savor your meal while admiring Unzen's finest illuminated Japanese garden. The Onsen, "Kirin no Yu," sourced from the Daikyokan Jigoku, offers a continuous flow of beautifying hot spring water. Guests can enjoy the large communal bath, open-air bath, and a sauna. The top-floor suite rooms also feature semi-open-air baths with water directly from the source. Open the windows, and you'll be greeted by the lush greenery of Unzen's mountains. Additionally, we provide an exclusive premium floor lounge, the "STRINGS" cloud-top salon, for our guests.

A long-established Property located on the slopes of Mount Eboshi, one of the five peaks of Mount Aso, preserving the Jigoku Onsen which first opened in 1803. Stepping into the main building, which is over 100 years old and has been renovated after the Kumamoto Earthquake, feels like entering a different world, as if traveling back in time. The Onsen features three different sources, offering 11 baths across four locations, each with unique water qualities and atmospheres. Guests can enjoy the "Suzume no Yu," a "miraculous bath" rich in sulfur content with water bubbling up from the ground, as well as the highly acidic "Moto no Yu" and "Tamago no Yu," choosing baths based on their benefits and purposes. For dinner, a variety of courses are available, including seasonal hot pots, irori hearth dishes, and Kyoto-style kaiseki cuisine. Local wild boar and venison, caught by local hunters, offer a rustic and unique taste of Aso. Experience the blessings of magnificent nature through the Onsen and cuisine.

At Kusatsu Onsen, there is a hot spring source called "Wata no Yu." The water is soft and gentle, with a milky white color reminiscent of cotton. When you immerse yourself in the "Kusatsu Hotel Annex Wata no Yu," your body and mind will be warmed and healed to the core.

This Ryokan features an open-air garden bath and a distinctive milky-blue Onsen with a slightly bluish, creamy-white hue. In early summer, azaleas bloom, and in winter you can enjoy the fragrance of pomelo floating in the bath—another of its charms. It is also a long-established Onsen Accommodation that has continued since the Meiji era, even in Myoban.

Indulge in one of Japan's finest Onsen at a mountain resort near Lake Tazawa. This globally rare Onsen boasts three "Japan's best" features: a strong acidic pH of 1.2 with hydrochloric acid as the main component, a source spring that releases 9,000 liters per minute, and Japan's only natural rock bath, renowned for its therapeutic benefits. Surrounded by beech forests, the Property features a warm, barrier-free design, ensuring a comfortable stay even for elderly guests. Enjoy highly praised meals featuring local specialties such as Akita sake and Hinai chicken. A Property that shines with its comprehensive appeal and pride in its Onsen.

An Onsen resort located in Kusatsu Town, Gunma Prefecture. Experience various Kusatsu Onsen in a vast area away from daily life. Enjoy forest bathing in rich nature and well-equipped amusement Facilities. The buffet featuring seasonal flavors and local ingredients is also recommended.

58 minutes from Karuizawa Outlet. Kusatsu Now Resort Hotel, a spa resort hotel located in Kusatsu Onsen, offers day-use bathing, private open-air baths, as well as activities like tennis and golf.

Situated on a 5,000-tsubo property, Tsutsujitei features approximately 3,000 tsubo of natural forest transformed into a rustic garden. This wooden property offers a serene retreat where you can experience the changing seasons, shifting shadows, gentle breezes, the sound of rain, and dancing snow, all while enjoying distant views of the Shirane mountain range. As a property close to nature, it provides a slow passage of time and moments of tranquility. Welcome to Tsutsujitei, the hot spring village where azaleas bloom.

KURBIO is a name derived from the combination of the German word "KUR," meaning "healing, recovery, treatment," and the Greek word "BIOS," meaning "life." KUR is often associated with Kurhaus (a Facility for therapeutic and recuperative purposes, often featuring an Onsen), and BIO is commonly heard in recent years in the context of macrobiotics (a dietary approach translated as "the art of longevity"). Kusatsu Onsen Hotel KURBIO is designed with the desire to help guests restore their physical and mental health through both aspects. It offers a serene environment, the renowned hot springs of Kusatsu, and daily meal menus based on macrobiotics. This is a new style of healthy resort that has not existed in Japan before.

Please enjoy the ultimate Onsen experience at Zao Kokusai Hotel with the skin-beautifying, milky-white free-flowing natural hot spring “Hachiemon-no-Yu,” as well as three private baths (additional fee applies).

Beyond the bustle of Yubatake lies a place of quiet calm Surrender yourself to the milky-white waters of Jizo Hot Spring Source Let time pass gently Enjoy your stay in Kusatsu freely and richly May the moments you spend here become special memories We welcome you with heartfelt hospitality.

A property boasting a history and tradition established in the late Edo period. Kusatsu Onsen is said to have been discovered during Minamoto no Yoritomo's falconry in Joshu Mihara no Sho, and "Kusatsu Onsen Tenojiyu" served as a guide. The elegance passed down through generations is fully reflected in the room designs and the garden's ambiance showcasing the beauty of the four seasons, creating a graceful space.

Takayu Onsen is a quaint and rustic hot spring area located at the entrance of the Azuma Skyline. With partial renovations starting in 2024, a new lounge, guest rooms, and by 2025, renovated large public baths and open-air baths have reopened. Enjoy the newly divided East and West Onsen facilities. At the new lounge "Hêtre," you can savor drinks and snacks that change with the time of day. After check-in, enjoy beer or sparkling wine after your bath, while during bar time after dinner, whiskey or sake is available as post-meal drinks (some items are charged).

Takayu Onsen Ryokan Hige no Ie offers a soothing open-air bath accompanied by the gentle sound of a stream, along with seasonal cuisine crafted with refined sensibility. From every Room, you can enjoy views of the mountains through all four seasons and a clear flowing river.

Just a 1-minute walk from the famous Kusatsu Onsen attraction 'Yubatake'. The traditional Japanese-style Ryokan 'Naraya' exudes historical charm. Boasting a variety of Room types suitable for various travels and the 24-hour flowing Onsen 'Shirahata no Yu'.

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.