Nortstar has it, Place called Jigokudani about 5 hours drive North of Tokyo, hike around 3 Klms into the Mountains to a Hot Springs that the local Macaques have learnt to use to keep warm in the Winters of Northern Japan, the day we visited it was snowing & - 10F, although caretakers throw Grain out in the surrounding area so the Monkeys are able to forage, there is no other attempt to domesticate, these are wild Monkeys. Having said that you can get amazingly close to them, they pretty well ignore us Humans as long as you don't touch them or maintain direct eye contact, worth a visit if your ever in Japan, especially in the winter.
Isn't that the place where sometimes a macaque will be kicked out and has to freeze? Seriously, that made me sad. I think I saw a doco on it. Great shot though.
1D X, 5D2, 550D, XF100, 24-70L ii, 135L, 70-200 f/2.8L IS II, Elinchrom Strobes, 600 ex-rt's,