Nagano Prefecture in Japan, known for its Onsen hot spring, especially Jigokudani Onsen, is best to visit in winter. You can see beautiful snow scene, monkeys in Jigokudani Yaen Koen, enjoy Onsen hot spring and delicious food in Kusatsu Onsen.
Jigokudani Monkey Park (地獄谷野猿公苑 Jigokudani Yaen Kōen) is in Yamanouchi, Shimotakai District, Nagano Prefecture, Japan at 36°43′58″N 138°27′46″ECoordinates: 36°43′58″N 138°27′46″E. It is part of the Joshinetsu Kogen National Park (locally known as Shigakogen), and is located in the valley of the Yokoyu-River, in the northern part of the prefecture. The name Jigokudani, meaning “Hell’s Valley”, is due to the steam and boiling water that bubbles out of small crevices in the frozen ground, surrounded by steep cliffs and formidably cold and hostile forests.
KANAGUYA, is an historical 250+ yr old ryokan sits on a narrow street dating back to the Edo period, in Shibu Onsen, Nagano.