Jigokudani Monkey Park: Watching Snow Monkeys Bathe in Hot Springs

Few wildlife encounters in Japan are as charming as watching a troop of wild Japanese macaques soak in a steaming hot spring pool while snow piles up on their heads. Jigokudani Monkey Park in Nagano Prefecture has been drawing visitors to witness exactly this scene since the 1960s, and it remains one of the most unique animal experiences anywhere in the world. These are not zoo animals behind glass. They are wild monkeys who come and go as they please, and who happen to have figured out that a hot bath on a freezing winter day is a very good idea.

The park sits in a steep, narrow valley (Jigokudani translates to "Hell Valley") at an elevation of about 850 meters, where volcanic hot spring water bubbles up naturally from the earth. Snow covers the ground for roughly a third of the year, and the surrounding forest of cedar and birch trees creates a dramatic backdrop for the bathing monkeys. The combination of wild animals, geothermal activity, and snowy mountain scenery makes this one of Japan's most photographable destinations.

The Snow Monkeys of Jigokudani

Japanese macaques, or nihonzaru, are the northernmost-living non-human primates in the world. The troop at Jigokudani numbers around 160 individuals, and park staff have identified and named each one. The monkeys discovered the hot spring pool in 1963, when a young female waded in to retrieve soybeans that had fallen into the water. She liked the warmth and stayed, and others soon followed. Within a few years, bathing had become a regular habit for the troop.

Today, the monkeys bathe most frequently during the cold winter months when temperatures regularly drop well below freezing. They enter the pool, sit with their eyes half-closed in apparent bliss, groom each other, and occasionally squabble over the best spots. Baby monkeys cling to their mothers or play at the edge. The pool is exclusively for the monkeys. Visitors watch from paved areas around the perimeter, often from just a few meters away.

The monkeys are wild and accustomed to human presence but not tame. They generally ignore visitors entirely, which is what makes the experience so remarkable. You are standing next to wild primates going about their daily lives as if you were not there.

When to Visit

Winter (December to March)

This is the prime season and the reason most people visit. Heavy snowfall blankets the valley, and the monkeys spend extended periods in the hot spring to warm up. The iconic image of red-faced macaques sitting in steaming water surrounded by snow is most likely during these months. January and February offer the heaviest snow and the most reliable monkey bathing, though temperatures often drop to minus 10 degrees Celsius.

Spring and Autumn

The monkeys still visit the hot spring area during warmer months but bathe less frequently since they do not need the warmth. Spring brings newborn baby monkeys, which are endlessly entertaining to watch. Autumn foliage in late October to early November adds color to the forested trail. The crowds are smaller during these shoulder seasons.

Summer (June to August)

The monkeys are present and active but rarely enter the water when temperatures are warm. Summer visits are more about observing their social behavior, watching young monkeys play, and enjoying the forest walk. The trail is lush and green, and the valley's volcanic steam creates an atmospheric scene even without snow.

What to Expect on Your Visit

The monkey park is not a walk-in-and-done attraction. Getting there involves a hike through the forest that is part of the experience.

From the nearest bus stop or parking lot, a well-maintained trail winds through the forest for about 25 to 35 minutes. The path is mostly flat with a gentle incline toward the end. In winter, the trail can be icy and snow-covered, so sturdy, waterproof footwear with good grip is essential. The park provides a basic path but does not clear it to bare ground.

Once you reach the park area, the hot spring pool is immediately visible. An observation area surrounds the pool, and the monkeys move freely between the pool, the nearby riverbank, and the surrounding trees. There is no barrier between visitors and monkeys. On a good winter day, you might see 30 or more monkeys in and around the pool at once.

How long the monkeys stay and how many show up varies by day. The park is open during set hours, but the monkeys are wild and follow their own schedule. Most winter days see good activity, but there is no guarantee. Staff work to attract the troop to the area during operating hours, but the monkeys ultimately decide.

Practical Information

Getting to Jigokudani Monkey Park

From Nagano Station

Take the Nagaden Express bus bound for Shiga Kogen from Nagano Station's east exit. Get off at the Snow Monkey Park stop (about 40 minutes, around 1,400 yen one way). From the bus stop, walk the forest trail for about 30 minutes to reach the park.

From Yudanaka Station

If coming from the Yudanaka onsen area, take a local bus to the Snow Monkey Park stop (about 10 minutes, 390 yen). Yudanaka is connected to Nagano by the Nagaden Railway (about 45 minutes by limited express).

From Tokyo

Take the Hokuriku Shinkansen from Tokyo Station to Nagano Station (about 80 minutes), then transfer to the express bus as described above. The entire journey from central Tokyo to the monkey park takes roughly three hours, making it possible as a long but rewarding day trip. The shinkansen is covered by the Japan Rail Pass.

Combining with Nearby Hot Springs

The Jigokudani area is surrounded by traditional onsen towns that make a perfect complement to the monkey park visit. After watching the monkeys enjoy their hot bath, you can enjoy your own.

• Shibu Onsen - A charming hot spring village with nine public baths that guests of local ryokan can visit for free. The narrow stone lanes and wooden buildings create an atmosphere that feels unchanged in centuries.
• Yudanaka Onsen - A slightly larger town with a variety of ryokan and hotels, many featuring outdoor baths (rotenburo) with mountain views. The Nagaden Railway terminal here makes it a convenient base.
• Kanbayashi Onsen - The closest hot spring village to the monkey park trail entrance, with a handful of quiet ryokan that offer the most convenient access to the monkeys.

An overnight stay at a ryokan in any of these towns lets you visit the monkey park first thing in the morning when crowds are smallest and then spend the afternoon soaking in your own onsen. For more hot spring experiences and travel ideas across Japan, explore GoAsia.cc.

Tips for Visiting Jigokudani Monkey Park

• Dress warmly in winter. Temperatures at the park can drop well below freezing. Layer up with thermal underwear, a warm jacket, hat, and gloves. You will be standing still watching the monkeys, which makes the cold feel more intense than during the walk in.
• Wear waterproof boots with grip. The trail is icy and snowy in winter. Regular sneakers are dangerous. Waterproof hiking boots or snow boots are essential. Some visitors bring portable crampons for extra traction.
• Arrive early. The park opens at 9:00 in winter, and the first visitors of the day often get the best views with the fewest crowds. Tour buses typically arrive later in the morning.
• Do not touch, feed, or stare at the monkeys. They are wild animals. Maintaining a respectful distance and avoiding direct eye contact (which monkeys can interpret as aggression) keeps the experience safe for everyone.
• Keep food hidden. Eating near the monkeys is prohibited. Any visible food can attract them and cause problems. Stow snacks in a closed bag.
• Bring a camera with a good zoom. While the monkeys are close, a zoom lens lets you capture detailed expressions and interactions without crowding the pool edge. A waterproof camera bag protects against snow and steam.
• Accept uncertainty. The monkeys are wild and do not perform on schedule. Some days the pool is crowded with bathing macaques, other days only a few show up. Winter gives you the best odds, but there are no guarantees.