Seiwa Onsen Luonto - Hokkaido

Seiwa Onsen Luonto (幌加内せいわ温泉ルオント) is a hot spring within the Horokanai Roadside Station grounds. It is located at Dai1 Seiwa in the town of Horokanai, Uryu District in Hokkaido Prefecture, Japan.

Seiwa Onsen Luonto

Seiwa Onsen Luonto Details

Winter

Horokanai may be known for its snowy winters and famous buckwheat fields, but hidden within this quiet town is a hot spring with a surprisingly colorful past: Seiwa Onsen Luonto. Long before it became the modern recreation center that travelers enjoy today, this area once hosted a charming hot spring inn right in front of Masawa Onsen Station.

Seiwa Onsen Luonto - Horokanai town, Hokkaido Prefecture

A Glimpse Into the Past

Back in the day, the hot spring inn was a simple detached house located right across the station. It was beloved by locals for its relaxed atmosphere and its signature dish, Jingisukan. Guests would gather around the grill and enjoy Hokkaido’s iconic lamb dish, sometimes wearing nothing but a towel around the waist. It was a quirky and memorable experience that reflected old Hokkaido culture.

Seiwa Onsen Luonto at night

Surprisingly, people from all around Hokkaido would drive here in on snowy winter days

幌加内せいわ温泉ルオント

Since Masawa Onsen Station closed during winter, the hot spring also shuts down during the cold months. Eventually, the spring dried up, and the inn finally closed its doors in May 1981. By 1986, the building was demolished, marking the end of an era.

Inside Seiwa Onsen Luonto

The Rebirth: Seiwa Onsen Luonto

A new chapter began in 1994 when Horokanai Town Recreation Center Seiwa Onsen Luonto opened on the same site. In 1998, it was officially registered as a roadside station named Roadside Station Mori-to-Mizuumi-no-sato Horokanai, giving travelers a refreshing stopover in this quiet mountain region.

Horokanai Roadside Station stamp

Soba no Sato Restaurant

Soba no Sato Restaurant's menu

Horokanai Soba

Modern Upgrades for Today’s Travelers

Seiwa Onsen Luonto received a major renovation in 2020, giving it a fresh new look while still maintaining its welcoming atmosphere. Visitors today can enjoy a free foot bath in the lobby, renovated open-air baths for both men and women, and a special heavy snow open-air bath that is available only during winter. The dining area was also renewed and reopened as Soba Dining Soba no Sato, where guests can savor handmade soba noodles crafted from Horokanai’s locally grown buckwheat throughout the year.

Hot Spring Quality

The hot spring water at Seiwa Onsen Luonto comes from a sodium-chloride spring, known for its warming and soothing effects.

• Type: Sodium-chloride spring (neutral, hypotonic, cold mineral spring)
• Source temperature: 7.6°C
• pH level: 6.4 (neutral)
• Color: Yellowish brown due to natural mineral deposits

Seiwa Onsen Luonto Onsen Area

Seiwa Onsen Luonto Indoor Onsen

Seiwa Onsen Luonto Outdoor Onsen

Although the spring water is naturally cold, it is heated to create a comfortable and relaxing bathing experience.

Team Nicerio visits Seiwa Onsen Luonto

Although we had visited the Horokanai Roadside Station a few years ago, it was only on February 24, 2024, that my family and I finally had the chance to take a dip and experience the onsen at Seiwa Onsen Luonto. It was my 845th day in Japan as an ALT under the JET Programme. Despite the snowy weather, there were surprisingly many people enjoying the baths. Aside from relaxing in the soothing onsen, we also tried Horokanai’s famous soba, which was incredibly delicious.

Seiwa Onsen Luonto Admission Fee

To use the onsen facilities, visitors need to pay an admission fee of 500 yen for adults and 250 yen for elementary school students, while infants can enter for free.

Seiwa Onsen Luonto Operating Hours

Seiwa Onsen Luonto is open from 10 AM to 9 PM. It is closed every Wednesday. If you’re collecting roadside station stamps, you can also get the roadside station stamp of Horokanai Roadside Station here.

Why visit Seiwa Onsen Luonto?

If you are exploring northern Hokkaido or passing through Horokanai, Seiwa Onsen Luonto offers both a relaxing soak and a glimpse into local history. It is a peaceful spot that blends old stories with modern comforts, making it a worthwhile stop for any traveler.

Getting to Seiwa Onsen Luonto

 

From Nayoro Station, board the Shinmei Line: Horokanai → Mitsumata → Nayoro Station (bound for Horokanai) operated by JR Hokkaido bus. 

Get off at Luonto Mae (ルオント前) bus stop. 

Travel time: 1 hour and 43 minutes

Fare: 1,350 yen

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