The Snow Monkeys of Nagano

Images of Japanese macaques relaxing and staying warm in the waters of a mountain hot spring

Several furry monkeys huddle together for warmth.
Tomohiro Ohsumi / Getty

Approximately 150 Japanese macaques live in the mountain valleys of the Jigokudani Yaen-koen monkey park in Yamanouchi, Nagano prefecture, Japan. Also called snow monkeys, the wild macaques are well known for spending their winter months keeping warm and relaxing in the waters of a natural hot spring. For years, the park has been a top destination for tourists, and its popularity is now rebounding as Japan has relaxed some of its COVID-19 restrictions.