Prices 2019 - Jigokudani, Jigokudani wild monkey park – go! nagano, Jigokudani wild monkey park is first and foremost a research park. the monkeys are fed enough so they don’t scavenger off for good, but are not fed so much as to become dependent on humans for food.. Snow monkeys of jigokudani webcam | jigokudani, Webcam of the snow monkeys in jigokudani, yamanouchi, nagano prefecture, japan. Jigokudani yaen-koen|welcome , japanese monkey to the world, The jigokudani yaen-koen (altitude 850 meters) is located in the valley of yokoyu river sourced from shiga-kogen of the joshinetsu-kogen national park in northern part of nagano prefecture..