Tsugaike Kogen Onsen is a hot spring area in Otari, Nagano Prefecture, in the northern Japanese Alps. It sits within the broader Tsugaike Kogen resort area, known in winter for skiing and snowboarding and in the warmer months for easy access to alpine scenery. The setting is more practical and low-key than a classic old hot spring town, with lodgings and baths serving travelers drawn to the mountains.
What gives Tsugaike Kogen Onsen its appeal is the rhythm of the landscape around it. In snow season, the baths offer a welcome pause after a day on the slopes; in summer and autumn, the area is a convenient base for walks and highland outings, including the route up toward Tsugaike Nature Park. For travelers exploring the Hakuba area, it works well as a quieter mountain stay where hot springs are part of everyday life rather than the main spectacle.