This unstaffed, open-air bath offers a rustic experience where the focus is entirely on the natural surroundings. Located about 1,000 meters above sea level, the onsen is accessible year-round and free to use, making it a simple yet rewarding destination for those exploring Hokkaido’s wild landscapes.

What to Expect

The onsen consists of rock-lined pools surrounded by forested mountains, providing a tranquil setting to soak in hot, mineral-rich waters. It’s a mixed-gender bath with no formal facilities like changing rooms or artificial lighting, so visitors should bring towels or swimsuits for modesty and convenience. A short, narrow path from a nearby parking area leads to the pools, which are maintained by local volunteers.

The setting is entirely natural, so there are no frills—just a peaceful place to relax while taking in the scenery. The lack of amenities might not suit everyone, but for those seeking an authentic outdoor hot spring experience, it’s a memorable spot.

Best Times to Visit

• Winter: The onsen is particularly striking in winter, with snow-covered surroundings creating a serene and almost magical atmosphere. Be prepared for cold conditions, and tread carefully as paths can become icy.

• Autumn: The vibrant fall colors in the surrounding forests add warmth and beauty to the setting, making it a popular time for visitors.

• Spring and Summer: These seasons offer lush greenery and clear skies, providing a refreshing environment for a soak.

Practical Tips

• There are no changing facilities or artificial lighting, so plan accordingly.

• The trail to the onsen can be slippery in winter; proper footwear is recommended.

• Mixed-gender bathing is the norm, so swimsuits or towels may help you feel more comfortable.