Snow Monkey Park Guide

December through March is the peak season for the iconic snow-bathing scenes — when snow covers the surrounding forest and the monkeys' frost-covered faces steam above the hot spring pool. January and February typically offer the deepest snow and the most photogenic conditions. The monkeys are present and use the pool throughout the year, but outside of winter the surrounding forest is snow-free and the contrast that makes the scene world-famous is absent. Spring (April–May) and autumn (October–November) offer pleasant hiking conditions with fewer visitors, and the monkeys are still active and visible. Summer is the least popular season — the pool is still in use but crowds of monkeys tend to be smaller.

The most efficient route from Tokyo takes approximately 2.5 to 3 hours. Take the Hokuriku Shinkansen (or Asama Shinkansen) from Tokyo Station or Ueno Station to Nagano Station (approximately 80 minutes). From Nagano Station, take the Nagano Dentetsu (Nagaden) railway line from Nagano Station (underground departure) to Yudanaka Station (approximately 45 minutes, ¥1,320). From Yudanaka Station, a local bus runs to Kanbayashi Onsen bus stop (10 minutes, ¥310), from which the trailhead for the 2km forest walk to the park begins. An alternative is a taxi from Yudanaka Station directly to Kanbayashi Onsen (5 minutes, approximately ¥1,000). Nagano City has many more accommodation options; Yudanaka Onsen is closer to the park.

Feeding the monkeys is strictly prohibited and the prohibition is actively enforced by park staff. The Japanese macaques at Jigokudani are wild animals — they are not domesticated and are not dependent on human food. Feeding disrupts their natural foraging behaviour, can cause aggression between monkeys competing for food, and habituates them to human contact in ways that can be dangerous. Visitors should also avoid making direct eye contact with monkeys, which they can interpret as a threat, and should not attempt to touch them. Park staff are present throughout opening hours and will intervene if visitors approach the monkeys inappropriately. Keep a respectful distance and allow the monkeys to move freely.

The trail from the Kanbayashi Onsen bus stop to the park entrance is approximately 2km each way through a forested mountain valley. The path is unpaved, partially stepped, and uneven — it is not wheelchair accessible and is challenging for those with limited mobility even in dry conditions. In winter the trail is covered in snow and ice and requires appropriate footwear (waterproof boots with grip, or rental spikes available at the trailhead). The walk takes approximately 25–40 minutes each way depending on pace. There is no alternative vehicle access to the park entrance — the walk is mandatory for all visitors. Trekking poles are helpful in winter.

Nagano city is home to Zenko-ji Temple — one of Japan's most important Buddhist temples, founded in the 7th century, which draws over 6 million visitors annually and is open before dawn for morning prayer. Matsumoto Castle, 50 minutes from Nagano by train, is one of Japan's finest original castles and a National Treasure — its striking black exterior is reflected in the surrounding moat. The Shiga Kogen highland plateau, adjacent to Yudanaka, is one of Japan's largest ski resort areas with over 20 interconnected ski fields. Obuse town (30 minutes from Nagano by Nagaden) is a beautifully preserved merchant town famous for chestnut confectionery and the Hokusai Museum. The Bessho Onsen hot spring town, reached by the Ueda Dentetsu railway, offers an older, quieter onsen experience.