Complete Guide to Kusatsu Onsen! Tips for First-Time Visitors to Enjoy a Perfect Hot Spring Trip

What is Kusatsu Onsen Like?

Located in Kusatsu Town, Gunma Prefecture, Kusatsu Onsen is one of Japan’s most iconic hot spring destinations. Known for its abundant natural spring water and exceptional quality, it attracts countless visitors. At the heart of the town lies “Yubatake,” the symbolic hot water source of Kusatsu Onsen. Bustling with activity during the day, it serves as the lively center of the hot spring town.

By night, the area takes on a completely different charm, enveloped in a magical atmosphere created by its beautiful illumination. Beyond its vibrant hot spring town, Kusatsu Onsen offers stunning natural scenery and a variety of nearby attractions, making it a year-round destination where visitors can experience the beauty of each season.

Kusatsu Onsen also boasts a rich history. Having flourished as a renowned therapeutic retreat for centuries, it has long been cherished by many. It is even counted among Japan’s Three Great Hot Springs (Nihon Sanmeisen)*, alongside Arima Onsen and Gero Onsen. Today, its reputation extends far beyond Japan’s borders, cementing its place as a world-class hot spring resort.

* Three hot springs selected by the Edo-period (1603–1868) Confucian scholar Hayashi Razan

┃The History and Origins of Kusatsu Onsen

There are various theories about the history of Kusatsu Onsen, but records show that it already existed as early as the Nara period (710–794). For centuries, people have traveled to this renowned hot spring to benefit from its healing waters. During the Kamakura period (1185–1333), even Minamoto no Yoritomo, the first shogun of the Kamakura shogunate, is said to have bathed here. The name “Kusatsu” appears in ancient legends and historical documents, further highlighting the deep-rooted history of this famous onsen town.

┃The Water Quality and Benefits of Kusatsu Onsen

Kusatsu Onsen is known for its highly acidic water, which is believed to have strong antibacterial properties. This makes it effective for treating skin conditions, cuts, burns, and other ailments, attracting many visitors seeking its therapeutic benefits. Additionally, the minerals in the hot spring water promote blood circulation, offering relief from fatigue and contributing to overall relaxation.

┃The Atmosphere of the Hot Spring Town and Access

The atmosphere of Kusatsu Onsen’s hot spring town is filled with charm and nostalgia. The streets surrounding Yubatake evoke the traditional ambiance of old Japanese hot spring towns. As you stroll along the stone-paved roads, you can enjoy the sight of rising steam, offering a peaceful retreat that transports visitors far from their everyday lives.Access to Kusatsu Onsen is also convenient. From Tokyo or Ueno, it takes about three hours by shinkansen, train, and bus.

Example Routes:
Ueno Sta. → 2hrs and 33 min by JR Limited Express Kusatsu-Shima → Naganoharakusatsuguchi Sta. → 25 min by JR bus → Kusatsu

Tokyo Sta. → 1 hr and 10 min by Hokuriku Shinkansen → Karuizawa Sta. → 1hr and 18 min–55 min by Kusakaru Kotsu / Seibu Kanko Bus → Kusatsu

A Guide to Enjoying Kusatsu Onsen

Kusatsu Onsen is an enchanting hot spring destination that offers a wide range of experiences for visitors. In addition to the healing effects of the hot springs themselves, the surrounding area is rich in natural beauty and cultural attractions.

┃Recommended Hot Spring Facilities

Kusatsu Onsen is home to numerous hot spring facilities that are definitely worth a visit. One such place is  Otakino-yu, which offers a stunning view of the iconic Yubatake. This facility is famous for its multiple baths, each with a different temperature. Another recommended spot is the historic Sai-nokawara Rotenburo (open-air bath), where you can relax in an open-air bath surrounded by nature. For those interested in Kusatsu’s traditions, Netsu-no-yu is the place to experience a “yumomi” (hot water stirring) performance while soaking in the unique atmosphere of this historic hot spring town.

┃Activities to Enjoy in Kusatsu Onsen

Kusatsu Onsen offers more than just its famous hot springs; there are plenty of activities to enjoy as well. For those who want to immerse themselves in nature, a stroll through Sainokawara Park is highly recommended. In winter, Kusatsu Onsen Ski Resort is a popular destination for skiing and snowboarding. During the summer months, trekking and hiking in the cool mountain air allow visitors to experience the refreshing beauty of the highlands.

┃Local Cuisine and Recommended Restaurants

When visiting Kusatsu Onsen, be sure to indulge in the local cuisine. A must-visit is the long-established Mikuniya, where you can enjoy delicious soba and high-quality wagyu beef. For something unique, try the famous Kusatsu Onsen Pudding, a local sweet treat. In addition to these, the hot spring town is home to several cafes and restaurants, making it a great place to take a break and enjoy some refreshments while sightseeing.

┃Souvenirs

Don’t forget to pick up some souvenirs when visiting Kusatsu Onsen! One of the best local crafts to take home is Kusatsu-yaki pottery, known for its distinctive colors and shapes. With a long history, it is a traditional piece unique to the area.

For local treats, onsen manju and onsen tamago are especially popular. Onsen manju are sweet steamed buns made using hot spring steam, giving them a fluffy texture and a subtle hint of the onsen’s aroma. Onsen tamago are eggs slowly cooked in the natural hot spring water, resulting in a delightfully soft and creamy texture.

Seasonal Charms of Kusatsu Onsen

Kusatsu Onsen is one of Japan’s premier hot spring destinations, offering stunning scenery and unique experiences throughout the year. Each season brings its own distinct beauty and ways to enjoy this renowned onsen town.

┃Spring Spots to Visit in Kusatsu Onsen

Spring in Kusatsu Onsen is a season of beautiful flowers and fresh greenery. A must-visit spot is Sainokawara Park, where you can enjoy the sight of flowers blooming and the ethereal landscape created by steam rising from the hot springs. Take a leisurely stroll through the hot spring town and experience the changing seasons in the mild spring weather.

┃Kusatsu Onsen as a Summer Retreat

Kusatsu Onsen, with its high elevation, offers a cool escape during the summer, making it a popular summer retreat. At the Kusatsu Tropical Wonderland, you can observe tropical plants and animals while enjoying the cool indoors. It’s the perfect place to forget the summer heat and refresh yourself in nature.

┃The Beauty of Autumn Foliage and Kusatsu Onsen

Autumn in Kusatsu Onsen is a season where the vibrant colors of the foliage take center stage. Just like in spring, Sainokawara Park is a popular spot, with its leaves beautifully changing colors. Along the river that flows through the park, trees lined up in shades of red and yellow create a picturesque scene. Throughout the hot spring town, you’ll find colorful autumn leaves perfect for a leisurely stroll or a photo opportunity.

┃Winter Wonders and Snowy Scenery at Kusatsu Onsen

In winter, Kusatsu Onsen offers unique experiences such as the “snow-viewing baths,” where you can enjoy a soak while watching the snowy scenery, and the magical Yubatake illuminated at night. In the open-air baths, you can relax while taking in the beautiful snow-covered landscape. Additionally, the nearby Kusatsu Onsen Ski Resort offers a range of winter sports, including skiing and snowboarding.

Things to Keep in Mind When Visiting Kusatsu Onsen

There are a few things to keep in mind when visiting Kusatsu Onsen. First, the mineral content of the hot springs is very strong, so those with sensitive skin should be mindful of their bath time, and it’s important to stay hydrated. Also, due to its high elevation, be sure to take extra precautions against the cold, especially in winter. It’s recommended to bring warm clothing and non-slip shoes for added safety. Additionally, as it can get crowded, you might want to plan your visit with some extra time to spare.