Kunimi Onsen

Rising on a highland close to the trailhead of Akita-Komagatake, Kunimi Onsen is a hidden spring celebrated for its strikingly green water. Set at high elevation, it stays wrapped in cool air even in summer. Hikers and lovers of hot springs climb the mountain road in search of this rare colored bath.

Highlights

What catches the eye above all is the emerald-like green of the water. Clear as it first emerges, it shifts into its distinctive color over time in a way that feels almost mysterious. The strong scent of sulfur and its reputation for warming you to the core draw many who come for its healing qualities.

Enjoying the Seasons

On this late-blooming highland, fresh greenery appears in early summer, and the season brings a welcome coolness as a mountain retreat. Autumn offers splendid foliage around Komagatake, pairing hiking with a soak. In winter the road is closed by snow and the operating period is limited.

Access and Basic Information

The spring can be reached by car from the direction of JR Tazawako Station or from Morioka, up a mountain road. It operates mainly in the snow-free months and welcomes day bathers.

A Quick Tip

The green water is rich in sulfur, so it is safer to leave precious metals behind. At this elevation mornings and evenings turn cold, so bring an extra layer to slip on.