December to March provides the highest probability of seeing monkeys in the hot springs, as they bathe more frequently in cold weather. The monkeys are present year-round but use the pools less often in warmer months. Early morning visits typically offer better viewing opportunities. Bathing behavior cannot be guaranteed as these are wild animals.
The 1.6-kilometer unpaved trail takes approximately 30 minutes with moderate inclines. Winter conditions create significant difficulty due to ice and packed snow, requiring proper hiking or winter boots with traction. The path is not wheelchair accessible and requires reasonable mobility.
No. All contact and feeding are strictly prohibited. The monkeys are wild and can be aggressive if approached. Visitors must maintain distance and stay in designated viewing areas. Violations result in removal from the park.
The park operates daily throughout the year. Admission is 800 yen for adults and 400 yen for children. Monkey sightings cannot be guaranteed as they are free-ranging wildlife.
The park has restrooms, a small information center, and a winter warming hut. No restaurants or cafes operate within the park. The nearest accommodations and dining are in Kanbayashi Onsen near the trailhead or in Yudanaka town.