Jigokudani Snow Monkeys: Wild Monkeys in a Hot Spring
How to see the snow monkeys of Jigokudani bathing in their hot spring: the best season, the forest walk, rules for visitors and getting there.
Quick answer
- What it is: a valley in the mountains of Nagano where wild Japanese macaques bathe in a hot spring.
- Famous for: red-faced monkeys soaking in steaming water, often with snow on their fur.
- Where: Jigokudani Yaen-koen, the Hell Valley Monkey Park, near Yudanaka Onsen.
- Time needed: half a day, including the forest walk in and out.
- Best time: December to March, when the monkeys bathe most often.
In a steaming valley in the Nagano mountains, wild monkeys climb into a hot spring to escape the winter cold. Watching them doze in the warm water while snow falls around them is unforgettable.
Why the snow monkeys are a wonder
Japanese macaques live farther north than any other non-human primate, surviving deep snow and freezing winters. At Jigokudani, some troops learned to bathe in a hot spring to keep warm, a habit seen almost nowhere else.
The valley's name, Hell Valley, comes from the steam and boiling water that rise from the ground here.
Wild, not tame
The monkeys are wild animals. They come down to the park because staff provide some food, but they move freely through the forest and are not kept in enclosures.
That means sightings are not guaranteed. On warmer days, or in summer, the monkeys may not bathe at all.
Planning your visit
| Season | What to expect | Bathing |
|---|---|---|
| Winter (Dec to Mar) | Snow, icy paths and classic onsen scenes | Most likely |
| Spring | Baby monkeys are born | Occasional |
| Summer | Green forest, active monkeys | Rare |
| Autumn | Red leaves along the forest path | Occasional |
When to go
- Mid winter: January and February give the best chance of snowy bathing scenes.
- Morning: arrive early to beat tour groups.
- Spring: see the newborn babies, though bathing is less common.
- Avoid: expecting bathing in summer: enjoy the forest walk instead.
Our tip: The forest path is icy in winter. Wear boots with good grip or bring simple slip-on crampons, and allow extra time.
Getting there
- From Nagano: express buses run from Nagano Station towards the park area in around 40 minutes.
- By train: take the Nagano Electric Railway to Yudanaka, then a short bus or taxi ride.
- The final walk: from the trailhead, a forest path of around 1.6 km takes 25 to 40 minutes.
Rules for visitors
- Never touch or feed the monkeys.
- Do not stare into their eyes, which they can take as a threat.
- Keep bags closed and food out of sight.
- Selfie sticks and tripods may be restricted, so check the rules at the entrance.
Frequently asked questions
When is the best time to see the snow monkeys?
December to March, when it is cold enough for the monkeys to bathe regularly in the hot spring.
Do the monkeys bathe all year round?
Mainly in winter. In warmer months they rarely use the hot spring.
How long is the walk to the Snow Monkey Park?
About 1.6 km through the forest, taking 25 to 40 minutes depending on snow and ice.
Can you visit the snow monkeys from Tokyo in a day?
Yes, via the shinkansen to Nagano and a bus or train, but it makes for a long day.
Yakushima
An island of mossy forests and cedars thousands of years old.
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