The most beautiful natural sites to discover Yudanaka

The name of this valley is explained by its volcanic activity. And the valley of the Inferno bears its name well. Count on several hours of hiking to make the tour. At the end, the reward is rather original: to contemplate the free macaques which splash in hot springs to warm up. This monkey paradise opened its doors in 1964. It is advisable to go there in winter so that you can also experience the onsen in the open air.