Sounkyo Onsen: Hot Springs in Daisetsuzan's Gorge

Why Visit Sounkyo Onsen

Sounkyo Onsen (層雲峡温泉) is a hot spring town tucked inside a volcanic gorge on the northeast edge of Daisetsuzan National Park (大雪山国立公園) — Japan's largest national park. The town sits at the base of towering columnar basalt cliffs, with two major waterfalls, a ropeway to alpine terrain, and natural hot springs fed by the volcanic geology underfoot.

What sets Sounkyo apart from more accessible Hokkaido onsen towns is the scenery. The gorge walls rise over 100 meters on both sides, and the Kurodake Ropeway lifts you from the town directly into the alpine zone of the Daisetsuzan range. This is not a suburban hot spring — it is a remote mountain onsen where the landscape is the main attraction.

Sounkyo is approximately 60 km from Asahikawa, reachable by bus in about 2 hours. The remoteness is part of the appeal, but it means planning ahead for transport and supplies. There are no convenience stores in town, so stock up in Asahikawa before heading out.

The Gorge: Cliffs, Waterfalls and Momijidani

The Sounkyo Gorge stretches for approximately 24 km along the Ishikari River, with sheer basalt cliffs formed by volcanic activity and erosion. The rock formations are columnar jointed basalt — geometric pillars created as lava cooled slowly — giving the cliff faces a distinctive texture that is especially striking in afternoon light.

Ryusei and Ginga Falls

Ryusei Falls (流星の滝, "Shooting Star Falls") and Ginga Falls (銀河の滝, "Milky Way Falls") are the gorge's signature landmarks. The two waterfalls sit side by side, visible from a roadside viewpoint along the main route through the gorge. Ryusei drops in a single powerful stream while Ginga cascades in delicate ribbons — the contrast earned them the nicknames "Male Falls" and "Female Falls."

A short trail leads to the Sobo-dai observation platform above the roadside viewpoint, offering a wider angle on both falls. Budget 30 to 45 minutes for the walk and photos. The falls are free to view and accessible year-round, though winter conditions require caution on the trail.

Momijidani Walking Trail

Momijidani (紅葉谷, "Autumn Leaf Valley") is a gentle walking trail through mixed forest along a stream. The trail takes about 30 to 40 minutes to walk and is flat enough for most fitness levels. In late September, the valley turns into one of Japan's earliest autumn color displays — the elevation means foliage peaks here weeks before most of Honshu.

According to local tourism information, the best autumn colors typically fall between late September and early October. Outside autumn, Momijidani is still a pleasant walk through quiet forest, though it lacks the dramatic draw of the peak foliage season.

Kurodake Ropeway and Alpine Hiking

Ropeway to the 5th Station

The Kurodake Ropeway (黒岳ロープウェイ) runs from Sounkyo Onsen town to the 5th station of Mt. Kurodake at 1,300 meters (4,265 feet). The 7-minute ride offers panoramic views of the gorge below and the Daisetsuzan peaks stretching to the horizon.

According to the ropeway operator's official site, round-trip tickets cost ¥2,800 (~$19) for adults and ¥1,600 (~$11) for children. Operating hours are 8:30 to 17:00 in summer, with extended hours during peak season and reduced hours in shoulder months. The ropeway closes for maintenance from late November through late April — check the official site for exact dates.

From the 5th station, a pair lift continues to the 7th station at approximately 1,520 meters. Even if you do not plan to hike further, the 5th station platform offers one of the most accessible high-altitude viewpoints in Daisetsuzan.

Hiking Beyond the Ropeway

From the 7th station, a trail leads to the summit of Mt. Kurodake (黒岳, 1,984 meters / 6,509 feet) in about 1 to 1.5 hours. The trail is well-marked but includes steep rocky sections near the top. Proper hiking shoes are essential, and weather can change rapidly at this altitude — bring layers even in summer.

The Kurodake summit connects to the Daisetsuzan Grand Traverse, a multi-day alpine route crossing to Asahidake. This is serious mountain hiking requiring experience, gear, and hut reservations. For day visitors from Sounkyo, the summit-and-return route is a satisfying half-day hike with views across the volcanic plateau. The hiking season runs from late June through early October.

Onsen Bathing in Sounkyo

Day-Use Onsen Options

Several ryokan and hotels in Sounkyo Onsen town open their baths to day visitors. Day-use bathing typically costs around ¥800 (~$5) for adults, with towel rental available for approximately ¥1,000 (~$7) at most facilities. Hours vary by property, but most day-use baths are available from 11:00 to 21:00.

The town also has a free foot bath (足湯) in the central area, according to the Sounkyo visitor information site. This is a convenient stop for warming up after a gorge walk without committing to a full bath.

Sounkyo's hot spring water is sodium chloride and sulfate type — clear and mildly alkaline, known for warming the body deeply. Unlike the sulfur-heavy springs at some Hokkaido resorts, Sounkyo's water is gentle on sensitive skin.

Staying Overnight at a Ryokan

An overnight stay is the most rewarding way to experience Sounkyo. Several mid-range hotels and ryokan line the main road, with rates typically ranging from ¥10,000 to ¥25,000 (~$67-$167) per person including dinner and breakfast. The half-board format is standard here — and practical, since dining options outside the hotels are limited.

Staying overnight allows you to enjoy the baths in the evening after other visitors have left, and to catch the early ropeway for a quieter mountain experience. If visiting during the Hyobaku Festival in winter, an evening walk to the illuminated ice sculptures followed by a hot bath is the defining Sounkyo experience.

Compared to Jozankei onsen near Sapporo, Sounkyo offers fewer luxury options but a more dramatic natural setting. The trade-off is remoteness — Jozankei is a 45-minute bus ride from Sapporo, while Sounkyo requires a full 2-hour journey from Asahikawa.

Seasonal Highlights: Autumn Foliage to Ice Festival

Sounkyo's seasons shape the experience more than at lowland onsen towns.

Season	Highlights	Notes
Late Sep – early Oct	Autumn foliage (Japan's earliest)	Peak colors at Momijidani and from ropeway
Jul – Aug	Alpine hiking, wildflowers	Kurodake summit trail open, warmest weather
Jan – Feb	Hyobaku Ice Festival	Frozen waterfall sculptures, illumination
Nov – Apr	Winter closure period	Ropeway closed, limited access

The Hyobaku Festival (氷瀑まつり) transforms the gorge into an ice art exhibition each January and February. According to local tourism sources, the festival features illuminated ice structures built around frozen waterfalls, with evening lighting creating a dramatic blue-white landscape. Entry is free.

Autumn is the most popular season. The foliage begins at the Kurodake summit in mid-September and descends to the gorge floor by early October. Riding the ropeway during peak color provides a layered view of red, orange, and gold stretching across the mountain slopes — one of Hokkaido's most celebrated autumn scenes.

Getting to Sounkyo from Asahikawa

By bus: Hokkaido Chuo Bus operates a direct route from Asahikawa Station to Sounkyo Onsen, taking approximately 2 hours. One-way fare is around ¥2,000 (~$13). Service runs several times daily, but check the bus operator's schedule for current times, as winter schedules are reduced. The last bus back to Asahikawa departs around 17:00.

From Kamikawa Station: A shorter bus connection runs from JR Kamikawa Station on the Sekihoku Main Line, taking about 30 minutes. This is useful if you are traveling from Sapporo via the JR Kamikawa line or driving partway.

By car: The drive from Asahikawa takes approximately 1 hour via Route 39 (60 km). Parking is available throughout the onsen town. In winter, roads can be icy — snow tires are mandatory and chains are recommended during heavy snowfall.

From Sapporo: There is no direct bus to Sounkyo from Sapporo. The standard route is JR train to Asahikawa (about 1.5 hours by limited express), then the bus to Sounkyo. Total travel time is approximately 3.5 to 4 hours each way.

For a broader look at hot spring destinations across the region, see our guide to Furano area onsen if you are exploring central Hokkaido.

Frequently Asked Questions

How long does it take to get from Asahikawa to Sounkyo Onsen by bus?

The Hokkaido Chuo Bus from Asahikawa Station takes approximately 2 hours and costs around ¥2,000 (~$13) one way. If driving, the same trip takes about 1 hour via Route 39. Buses run several times daily, but the last return bus departs around 17:00, so plan accordingly for day trips.

Is the Kurodake Ropeway worth it for a day trip?

Yes. The ropeway takes you to the 5th station at 1,300 meters with panoramic views of the Daisetsuzan peaks. A round-trip ticket costs ¥2,800 (~$19) for adults. Even without hiking further, the viewpoint is impressive. If you have the fitness and time, continue to the 7th station by pair lift or hike to the Kurodake summit for a half-day alpine experience.

Can I visit Sounkyo Gorge and do some hiking in one day from Asahikawa?

It is possible but tight. Take the early morning bus, ride the ropeway, hike to the 7th station or summit, see Ryusei and Ginga Falls, and catch the last bus back. You will not have time for a leisurely onsen soak. An overnight stay allows a far more relaxed pace and time for the evening baths.

When is the best time to visit Sounkyo Onsen?

Late September to early October for Japan's earliest autumn foliage — the colors at this elevation peak weeks before the rest of Japan. July and August are ideal for alpine hiking on Kurodake. January and February bring the Hyobaku ice festival with illuminated frozen waterfall sculptures. The ropeway closes from late November through late April.