Jigokudani Yaen-koen ( Wild Snow Monkey Park )

【Notice of temporary closure

 Several park officials have been infected with the new coronavirus.

 We will be closed for a while due to the possibility of infection to other staff, consideration of customer safety, and difficulty in business due to lack of staff.

 We are very sorry to all of you who have been looking forward to planning your visit.

 We will inform you again about the resumption of business.

 Thank you for your understanding and cooperation.】


*The trail from Kanbayashi Onsen to Jigokudani has some slopes, but it is flat in most parts of the way. It is about 2 kilometers and takes approximately 30mins walk.

*No wheelchairs and carts are accessible in either approach due to unpaved roads, uneven surfaces and steps.

*In autumn season, monkeys rush through the forest seeking nourishing nuts and fruits for preparation of winter.

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The Jigokudani Yaen-koen is located in the Valley of Yokoyu River which takes its water from Shiga-Kogen of the Jyoshinetsu-Kogen National Park in the northern part of Nagano prefecture. Looking at the very steep cliffs and the fountains of hot water, people started to call the valley ‘Jigokudani (Hell valley)’. The altitude is 850 meters, winter seasons in Jigokudani is so harsh, for example, temperatures drops to 10 degrees below zero and snow falls over 1 meter.

The Japanese macaques, well known as snow monkey (hereinafter called ‘monkeys’), inhabit all part of Japan except Hokkaido and Okinawa.

The best way to watch wild monkeys is to visit the Jigokudani Yaen-koen. Our objective is to provide a place where everybody can watch closely monkeys’ biology in a natural environment.

There are no fences between monkeys and us. We can enter and see their world under natural condition.

Though monkeys in Jigokudani are well known as bathing monkeys, bathing is a measure to protect them against the extreme cold during winter seasons. Therefore they reluctant to take a bath during other warm seasons. Bathing is a small portion of their life.

There is a lot of interesting biology of monkeys more than bathing, why don’t you try to find it? Each season has unique ways to have fun with monkeys’ observation.

*In summer season, baby monkeys born in the spring start playing with other babies in a short distance away from their mothers. Basically monkeys are not good with hot season, adult monkeys rest in the shade for long time of a day. But young monkeys are still active.


Opening hour: Summer season (generally between April – October) / Start About8:30 End About17:00

                       Winter season(generally between November – March) / Start About9:00 End About16:00

Admission Fee (consumption tax included) : Adult 800yen / Child 400yen

Location: 6845 Yamanouchi-town, Shimotakai-gun, Nagano, Japan 381-0401

MAPCODE: 341 820 505*86

Northern Nagano Travel Guide

We introduce recommended information of Northern Nagano. A stay in Northern Nagano area is sure to be the highlight of your trip to the Japanese countryside.