I spent December and some of January in Bosnia. I stayed in the mountains about 20 KM from Sarajevo, technically in Republic Srpska (The municipality in Bosnia populated mainly by Serbs)
I stayed on a small farm deep in the woods at a high altitude called 'Vukov Konak' which means 'Wolfs lair'. The nature here is stunning and the wintery, forested landscape was wonderful to walk in, usually with a very energetic husky named Lumi.. and sometimes a cat called Ellis.
I met some very interesting locals too, though couldn't communicate at all because of my lack of Serbo-Croat. I'll post more when I get a chance.