Monkeys in Japan love to bathe in thermal spa. This is also the only place in the world where macaques bathe in hot springs.
The Jigokudani Yaen-koen is located in the Valley of Yokoyu River sourced from Shiga-Kogen of the
Joshinetsu-Kogen National Park in northern part of Nagano prefecture in Japan. The troops of wild Japanese macaque ( snow monkeys) inhabit here naturally through out the ages.
Because of the very steep cliffs and the steam coming off the springs in everywhere, ancient people used to call this valley the “Hell Valley”. The snow covers everything for almost one third of the year. Even that kind of severe environment here is a paradise on earth for the macaques that live here.
Check out this video of Macaques enjoying bathing in these thermal springs!
Since the establishment of the of Jigokudani Yaen-koen park in 1964, it has been a popular place for watching the monkeys bathing in hot springs. Also a lot of researchers and photographers come here every year to observe the monkeys.