Tranquil waters where swans rest their wings, and sandy shores with rising steam—this is what awaits at Lake Kussharo in Teshikaga, Hokkaido. As Japan’s largest caldera lake, it offers unique scenery such as Sunayu, where hot spring water bubbles up beneath your feet, and several wild open-air baths scattered along the shore.
This article provides helpful Q&A and a brief summary to guide your visit to Lake Kussharo. Whether you’re a first-time visitor to Japan or a solo traveler, you’ll find clear, gentle advice to make your trip smooth and enjoyable.
Let’s resolve any travel doubts and discover what makes Lake Kussharo a perfect match for your journey. Here’s all the information you need to feel more connected to this beautiful destination.
Lake Kussharo Access Guide for First-Time Visitors
Check the latest weather forecast before your visit: [weathernews]
By Train
Sapporo Station
- Take the JR Limited Express “Ozora” train to Kushiro Station (approx. 3 hr 40 min)
- Transfer to the JR Senmo Line and ride to Mashu Station (approx. 1 hr 40 min)
- From Mashu Station, take an Akan Bus bound for “Lake Kussharo” and get off at the “Sunayu” stop (approx. 25 min)
- Total travel time: approx. 6 hr
New Chitose Airport Station
- Take the JR Rapid “Airport” to Minami-Chitose Station (approx. 3 min)
- Transfer to the JR Limited Express “Ozora” and ride to Kushiro Station (approx. 3 hr 50 min)
- Transfer to the JR Senmo Line and ride to Mashu Station (approx. 1 hr 40 min)
- From Mashu Station, take an Akan Bus bound for “Lake Kussharo” and get off at the “Sunayu” stop (approx. 25 min)
- Total travel time: approx. 6 hr 15 min
Abashiri Station
- Take the JR Senmo Line to Mashu Station (approx. 1 hr 30 min)
- From Mashu Station, take an Akan Bus bound for “Lake Kussharo” and get off at the “Sunayu” stop (approx. 25 min)
- Total travel time: approx. 2 hr
One Point Advice
Akan Bus operates on a limited schedule, so be sure to check the timetable in advance to align with your arrival at Mashu Station.
Lake Kussharo Visitor Info: Hours & Access
- Admission: Free (exploring the lakeside is unrestricted)
- Hours: No restrictions (open-air destination)
- Closed: None
- Official website: https://masyuko.or.jp/en/
Top Things to Do at Lake Kussharo

Sunayu|Hot Spring Foot Bath on the Shore
A must-visit upon arriving at Lake Kussharo, Sunayu is a remarkable place where warm water bubbles up when you dig into the sand. This natural phenomenon creates an impromptu foot bath experience right on the lakeside. In winter, swans gather close to the shore, and the entire scene takes on a serene, dreamlike atmosphere. Bring a towel and a small scoop to fully enjoy your Lake Kussharo hot spring experience.
- Time required: 30–45 min
- Admission: Free
Bihoro Pass|Best View of Lake Kussharo
Located northwest of the lake, Bihoro Pass offers a sweeping view from 525 meters above sea level. From here, Lake Kussharo’s full outline becomes clearly visible, and on some days, sea clouds drift across the surface. A nearby roadside rest area features a café and souvenir shop, making it a perfect scenic drive stop near Lake Kussharo. Early morning or dusk is highly recommended for your visit.
- Time required: 30–40 min
- Admission: Free
Wakoto Peninsula Trail|Volcanic Nature Walk
Jutting into the lake, the Wakoto Peninsula is shaped by volcanic activity and offers a 2.5 km walking trail. The trail is mostly flat and features fascinating natural elements such as lava flows, sulfur vents, and small hot springs. As you walk through the quiet forest, the shimmering lake and birdsong create a tranquil and restorative atmosphere.
- Time required: 45–60 min
- Admission: Free
Nearby Places to Visit from Lake Kussharo

Kotan Onsen|Lakeside Open-Air Bath
About a 15-minute walk from Sunayu, Kotan Onsen is a rustic, open-air bath set right beside the lake. It’s free to use, and the experience of soaking as the lake turns golden at sunset is unforgettable. This mixed-gender onsen with basic facilities allows swimwear and is popular among international travelers visiting Lake Kussharo. It’s the ultimate wild onsen where you can fully immerse in nature.
Akanko Ainu Kotan|Indigenous Culture Village
From Mashu Station, take the JR Senmo Line to Kushiro Station, then transfer to a bus (approx. 2 hr). Akanko Ainu Kotan is a cultural village within Akanko Onsen where Ainu traditions remain vibrant. You can observe wood carving, traditional clothing, and dance performances, offering an enriching encounter with Japan’s indigenous heritage. The lakeside scenery and hot springs complement the experience.
Lake Mashu Observatory|World’s Clearest Lake View
Recommended for the following morning, Lake Mashu is renowned for its world-class water clarity. It’s accessible by car (approx. 30 min from Lake Kussharo) or taxi from Mashu Station. On sunny days, deep blue water fills the crater; on misty days, the lake exudes mystical beauty. Although Lake Mashu is a popular tourist spot, it retains a peaceful atmosphere and offers an unforgettable lake view. Early morning visits are best for clear skies.
Lake Kussharo|Travel Tips & Q&A

- When is the best time to visit Lake Kussharo?
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Early summer (June–August) is great for outdoor activities, while winter (November–March) brings magical scenes with migrating swans.
- Can I go cycling around the lake?
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Yes. The roads around Lake Kussharo are mostly flat, and rental bikes are available, making it ideal for cycling.
- Where can I see swans?
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Look for them around the “Sunayu” and “Kotan Onsen” areas. Mornings offer the best viewing opportunities.
- What kind of winter clothing is necessary?
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Temperatures can drop to around –15°C. A down coat and insulated boots are highly recommended.
- Are there toilets or rest areas by the lake?
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Public toilets and benches are available around Sunayu and Wakoto Peninsula for your convenience.
Lake Kussharo Summary|Where to Go Next
Lake Kussharo offers a peaceful escape filled with nature, wild birds, and hot spring experiences. It’s a place where time flows gently, providing comfort for both body and spirit.
With iconic sights like the foot-warming Sunayu and swans on the water, Lake Kussharo is a relaxing and accessible hot spring destination for solo travelers and first-time visitors to Japan.
Next, why not extend your journey to the mystical “Lake Mashu” or explore indigenous culture at “Lake Akan”?