A Day at Jigokudani Monkey Park (地獄谷野猿公苑, Jigokudani Yaen Kōen) in Nagano, Japan

A Day observing the famous "snow monkeys" at Jigokudani Monkey Park (地獄谷野猿公苑, Jigokudani Yaen Kōen) in Nagano, Japan. After taking a bus to the park, you hike in about 2 kilometers until you get to the main gathering point of the snow monkeys. In the valley, the monkeys roam free, mixing right in with the visitors. As you approach, you find them walking along the path with you, jumping down from the nearby trees and generally moving all around the vast space. When it gets cold enough, the monkeys gather in the natural hot spring (onsen). The day we visited it was fairly warm, so no monkeys were in the onsen. But there were still hundreds of them running, playing and eating all over the place.