The Jigokudani Hot Springs in Nagano Prefecture, Japan is most famous for its so called “snow monkeys” — wild Japanese monkeys enjoying the naturally hot waters alongside the human visitors. More than one hundred Macaques --Japan's indigenous monkeys-- live in the Jigokudani Monkey Park, located in a valley called the "Hell Valley" for the volcanic activities observed there. (Photos: Duchamp and Tim Kelf)