Explore
This is the main conservation area where the 160-strong monkey troop lives and bathes. It sits at an altitude of 850 meters in the Yokoyu River valley.
After completing the 1.6-kilometer forest trail, you reach the official park grounds. Here, wild Japanese macaques roam freely without fences or barriers.
You must follow strict rules inside the facility. Do not touch or feed the monkeys, and maintain a respectful distance at all times.
30-45 minWinter bathing only
This natural hot spring bath was built specifically for the wild macaques to survive the severe cold. You can watch the monkeys soak and socialize from the edge of the pool. Humans are strictly prohibited from entering the water. The monkeys primarily bathe during the freezing winter months from December to March.
30 minNewborns in spring
The steep cliffs and riverbed provide a natural habitat where the monkey troop eats and raises their young. Visitors can observe their daily social interactions without any barriers. Late April to early June is the birthing season. This is the best time and place to spot newborn monkeys clinging to their mothers.
5-10 min¥800 adult admission
This is the entry point where you pay the admission fee and review the park safety guidelines. Standard admission is ¥800 for adults. Since August 2026, you must have an advance online ticket during the peak winter season. Have your digital reservation ready to ensure you enter before the daily 2,000-visitor cap is reached.
